CN114091146A - Method and device for block form design based on wind environment simulation and storage medium - Google Patents
Method and device for block form design based on wind environment simulation and storage medium Download PDFInfo
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Abstract
The invention discloses a method for designing a block form based on wind environment simulation, which comprises the steps of acquiring relevant data of a city block and generating a city terrain building model by taking the block as a basic composition unit; then selecting a site to be optimized from a city block, determining the block in the site to be optimized, acquiring the building economic and technical indexes in the corresponding block according to the block in the site to be optimized, establishing a wind tunnel according to the climate condition, and simulating the site to be optimized according to a computer simulation method to obtain a simulation result; optimizing the simulation result according to a multi-objective optimization algorithm, and taking the optimization result meeting the preset block design specification as the architectural form design of the site to be optimized; and changing the parameters of the wind tunnel and executing the form simulation step to continue simulating the field to be optimized according to the unsatisfied optimization result. According to the invention, the block form of the design site is optimized through simulating the wind environment, so that the difficulty of block optimization design is greatly improved.
Description
Technical Field
The invention relates to the field of street shape research, in particular to a method and a device for designing a street shape based on wind environment simulation and a storage medium.
Background
Currently, the research on urban morphology mainly includes regional level research, urban level research and block level research. The research on the street level is the research on the form of the street and can be divided into qualitative research and quantitative research. And the qualitative research on the street morphology mainly focuses on the development of the terrain morphology of urban central areas and the protection and the updating of the traditional residential areas. Today, quantitative research on street-block morphology is relatively rare, focusing primarily on ancient towns and historical street-blocks.
The qualitative research on the street shape mainly includes research on the topographic state of the street, such as spatial layout of the street, layout combination of buildings, and spatial geometric structure of buildings, but the research on the wind environment data of the street is also important for the topographic state of the street in the building process of the street, that is, the performance of the wind environment data of the street directly affects the life of residents, so that a street shape optimization system considering the wind environment data is urgently needed to realize the optimization of the street shape when the street shape is optimized.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a method for designing a street configuration based on wind environment simulation, which can improve residential experience of residents in a street by considering wind environment data during street configuration optimization.
Another object of the present invention is to provide a street configuration designing apparatus based on wind environment simulation, which can improve residential experience of residents in a street by considering wind environment data when optimizing the street configuration.
The invention also aims to provide a storage medium which can take wind environment data into consideration when optimizing the shape of a block and improve the residential experience of the block.
One of the purposes of the invention is realized by adopting the following technical scheme:
a method for designing a block form based on wind environment simulation comprises the following steps:
establishing a model base: acquiring relevant data of a city block and generating a city terrain building model by taking the block as a basic composition unit; the urban terrain building model comprises a plurality of different blocks and building economic and technical indexes in each block;
and (3) form simulation: selecting a site to be optimized from the city block, determining the block in the site to be optimized, acquiring the architectural economic technical index in the corresponding block according to the block in the site to be optimized, establishing a wind tunnel according to the climate condition, and simulating the architectural economic technical index in each block in the site to be optimized and the wind tunnel according to a computer simulation method to obtain a simulation result; the simulation result comprises the architectural shape of each block in the site to be optimized and the index of the wind environment condition;
and (3) optimizing: optimizing the simulation result according to a multi-objective optimization algorithm, judging whether the site to be optimized meets a preset block design specification or not according to the optimization result of each optimization, if so, taking the optimization result as the architectural shape design of the site to be optimized, and executing a shape simulation step to continue simulating the site to be optimized by changing the parameters of the wind tunnel; until the end-of-cycle condition is satisfied.
Further, the preset neighborhood design specification comprises specification requirements and design requirements; wherein the code requirements comprise a building red line and a building concession line; the design requirements include the volume ratio of the building, the number of towers, the positions of the skirt houses and the height of the skirt houses.
Further, the model base establishing step includes:
acquiring relevant data of a city block through an internet data platform; the internet data platform comprises a geographic space data cloud, an OpenStreetMap, a high-grade map and a Baidu map;
integrating relevant data of the city block by ArcGIS software to generate a city terrain building model by taking the block as a basic construction unit;
and acquiring the block form type of each block according to roads in the city block, and calculating to obtain the architectural economic technical index of each block.
Further, the morphology simulating step includes:
selecting a site to be optimized which needs design optimization from city blocks, and determining the block type of each block in the site to be optimized and the architectural economic technical index in the corresponding block;
and setting a simulation range according to the size of the field to be optimized, and performing CFD simulation on the field to be optimized by adopting a computer simulation method to obtain a simulation result.
Further, the morphology simulating step includes: acquiring weather conditions according to meteorological data; the wind tunnel comprises wind tunnel size, wind speed, wind direction and grid fineness.
Further, the indexes of the wind environment condition include an average wind speed, a comfortable wind speed area ratio, a quiet wind area ratio, and a comfortable wind dispersion.
Further, the method also comprises the screening step: and arranging and analyzing according to the building form design of the site to be optimized obtained after optimization, eliminating the building form design which does not accord with the actual requirement, and displaying the screened building form design of the site to be optimized in a chart form.
Further, the optimizing step specifically includes: combining a genetic algorithm and a pareto optimal algorithm, simulating the site to be optimized by performing the morphological simulation step for multiple times, calculating a pareto optimal solution, and screening the pareto optimal solution according to the building aesthetic requirements and the block design specifications to obtain the site to be optimized.
The second purpose of the invention is realized by adopting the following technical scheme:
the block shape design device based on wind environment simulation comprises a memory and a processor, wherein a block shape design program which can run on the processor is stored in the memory, the block shape design program is a computer program, and the processor realizes the step of the block shape design method based on wind environment simulation when executing the block shape design program.
The third purpose of the invention is realized by adopting the following technical scheme:
a storage medium which is a computer-readable storage medium having a neighborhood shape designing program stored thereon, the neighborhood shape designing program being a computer program, the neighborhood shape designing program when executed by a processor implementing the steps of a neighborhood shape designing method based on wind environment simulation as employed in one of the objects of the present invention.
Compared with the prior art, the invention has the beneficial effects that:
according to the method, the city terrain building model in the city block is established according to the related data of the city block at present, then the optimization block is simulated by combining the existing building of the block in the block to be optimized with the wind tunnel, the block form and the wind environment condition index are obtained, then the simulation result is optimized according to the multi-objective optimization algorithm, the optimization result meeting the preset block design plan is stored and used as the optimized block form, and the data of the wind environment are simulated into the block form optimization, so that the optimized block form is more beneficial to improving the resident experience.
Drawings
FIG. 1 is a flow chart of a method for designing a street configuration based on wind environment simulation according to the present invention;
fig. 2 is a flowchart of a block configuration designing apparatus based on wind environment simulation according to the present invention.
In the figure: 11. a memory; 12. a processor; 13. a communication bus; 14. a network interface.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example one
The invention provides a method for designing a street shape based on wind environment simulation, which mainly completes the optimization design of the street shape through a shape model generation part, a wind environment simulation part and an optimization design part. The morphological model generation part is used for establishing a city terrain building model by taking the blocks as basic construction units according to the related data of the existing city blocks and calculating the building economic and technical indexes of each block. The building economic technical index refers to data such as building size and occupied area in each block, and determines the form design of each block.
And the wind environment simulation part is used for simulating the site to be optimized by adopting a computer simulation method, and taking the index of the wind environment condition into consideration during simulation.
And the optimization design part is used for optimizing the building form of the site to be optimized by combining a target optimization algorithm and obtaining an optimization result meeting the specification.
As shown in fig. 1, the present invention provides a preferred embodiment of a method for designing a street configuration based on wind environment simulation, comprising the following steps:
and step S1, acquiring relevant data of the city block, and establishing a city terrain building model by taking the block as a basic construction unit. The urban terrain building model comprises a plurality of different blocks and building economic and technical indexes in each block.
The relevant data of the city block comprises data of terrain, current buildings, roads, volume ratio and the like. The building economic and technical indexes comprise the site area, the volume ratio and the occupied area of each block and the size of each building contained in each block. The architectural economic technical index of each block can determine the block form of the corresponding block.
Preferably, the relevant data of the city block is obtained through an internet data platform. The internet data platform preferably includes a geospatial data cloud, an openstreet map (OSM), a high-grade map, a Baidu map, and the like.
The invention takes the street as the standard for the design of the form of the street, therefore, the invention integrates the relevant data of the city street by using the street as a basic construction unit through ArcGIS software, and further generates the city terrain building model. The ArcGIS software is a software of a geographic information system series, which is powerful and is commonly used by those skilled in the art for analyzing geographic information data.
Generally, when a building shape of a block is designed, roads in the block are planned first, and then, design planning of buildings in the block is performed according to the roads in the block. When the road planning in the block is different, the corresponding building planning is also different. For example, when the road plan is different, the height, width, distance from the road, orientation, etc. of the corresponding buildings are different.
At present, according to the existing research on city blocks, the formed blocks are generally divided into a plurality of different types according to the difference of road planning, such as tower-skirt house type, multi-layer enclosing type, tower group type, and the like. As for the type of street configuration, buildings in a street will generally present different types of configurations due to different designs of roads, and the type of street configuration in the present invention is well known to those skilled in the art. For example, the city terrain building model is imported into Rhino software to realize the division and identification of the blocks. Wherein, the English of Rhino is called Rhinoceros, and Chinese is Rhinoceros. The software was officially marketed in 1998 at 8 months and is a powerful professional 3D modeling software on PC developed by Robert McNeel & Assoc, usa. The Rhino software has a development concept of integrating hundreds of advantages, has an excellent modeling mode of NURBS (Non-Uniform Rational B-Splines, which is a very excellent modeling mode and is supported in advanced three-dimensional software), and also has a grid modeling plug-in T-Spline (T-Spline surface), so that the modeling mode has more choices, and more vivid and vivid sculpts can be created.
Preferably, in the actual use process, the model generation platform can be formed by programming the process with a computer program, so that a user can conveniently input data to the platform, and the data processing can be realized. Preferably, the model generation platform provided by the invention is more people-oriented by architects, and compared with the traditional building wind environment simulation software such as Pheonics, Fluent and other engineers with relevant professional backgrounds, the model generation platform can integrate the simulation process and the design process, thereby being more professional.
In order to clarify the generation concept of the building shape, the embodiment firstly needs to sort and classify the existing design conditions such as the surrounding environment of the site, the local climate condition and the related specification requirement, and then summarizes and summarizes the parameter data for controlling the generation of the building shape according to the actual use requirement. The parameters for controlling the generation of the building shape can be divided into two types: variable parameters and invariant parameters. The variable parameters mainly comprise the shape, the size and the like of the building platform, and the constant parameters mainly comprise the push line distance, the fire-proof interval and the like.
That is, in this embodiment, several main city block forms and their features are extracted from the existing research documents about city block forms at home and abroad, and the form generation ideas of different block forms are derived, and then the parameterized platform is used to generate the parameterized building form program according to the form generation ideas of different blocks.
And S2, selecting a site to be optimized from the city block, determining the block in the site to be optimized, and acquiring the architectural economic technical index in the corresponding block according to the block in the site to be optimized.
And S3, establishing a wind tunnel according to the climate conditions, and simulating the building economic and technical indexes in each block in the site to be optimized and the wind tunnel according to a computer simulation method to obtain a simulation result. And the simulation result comprises the building form of each block in the site to be optimized and the index of the wind environment condition. Meanwhile, during simulation, a wind tunnel is established according to weather conditions, and parameters of the wind tunnel are set to simulate the field to be optimized.
Preferably, in step S3, CFD simulation of the wind environment is performed on the site status quo before design to obtain the original wind environment data of the site, so that the parameters of the wind tunnel can be obtained according to the wind environment data, and the wind tunnel is further established.
Wherein the parameterized building shape is a building model obtained by a program in Grasshopper. In particular, the model of the output building shape can be changed instantly by adjusting the input parameters of the building shape generation program in Grasshopper, which does not require modification of the model by manual calculation.
Wherein, Grasshopper is a visual programming language plug-in 3D modeling software Rhinoceros.
Preferably, the index of the wind environment condition includes an average wind speed, a comfortable wind speed area ratio, a quiet wind area ratio, a comfortable wind dispersion, and the like.
Preferably, during simulation, a simulation range is set according to the size of the site to be optimized, and a computer simulation method is adopted to perform CFD (Computational Fluid Dynamics) simulation on the site to be optimized to obtain a simulation result.
Preferably, during CFD simulation, weather conditions are obtained according to meteorological data, a wind tunnel is established, and then building economic and technical indexes in each block in the site to be optimized and the wind tunnel are simulated according to a computer simulation method to obtain a simulation result. The wind tunnel comprises wind tunnel size, wind speed, wind direction and grid fineness. The building forms of the blocks in the site to be optimized are different through the different parameters of the wind tunnel.
And step S4, optimizing the simulation result according to the multi-objective optimization algorithm.
Preferably, in step S4, CFD simulation is performed on a large number of different building shapes in the simulation result through optimization of a genetic algorithm, so as to obtain corresponding wind environment data, and the obtained wind environment data is screened. Wherein the building model is generated by means of a building shape generation program.
The CFD simulation of this embodiment runs on Grasshopper, and all the input parameters must be data existing in Grasshopper.
In the optimization process of the genetic algorithm, the algorithm randomly generates a corresponding number of architectural shapes according to the customized sample number of each generation, performs CFD simulation on the architectural shapes and records the results of the architectural shapes. After a generation of CFD simulations is completed, the program will screen the results and leave samples of the composite conditions, which will become the parents of the next generation, from which the parameters of the building shape of the next generation will be generated.
The output of the CFD simulation is the wind speed and direction data in each grid, and the original data is further processed by a formula to obtain a referenceable index.
And S5, judging whether the site to be optimized meets the preset block design specification or not according to the optimization result of each optimization, and if so, executing S6.
S6, taking the optimization result as the architectural form design of the site to be optimized, and executing the steps S3-S6 by changing the parameters of the wind tunnel; until the end-of-cycle condition is satisfied.
The multi-objective optimization algorithm adopted by the invention is an Nsga-ll evolution algorithm. The algebra and the sub-algebra quantity of the legacy algorithm are set through the Nsga-ll evolution algorithm, so that the running times of the loop are set. The Nsga-ll evolutionary algorithm will operate more efficiently than existing multi-objective optimization algorithms, such as SPEA 2.
And S7, sorting and analyzing the building form designs of all the sites to be optimized according to the optimized site, eliminating the building form designs which do not accord with the actual requirements, and displaying the screened building form designs of the sites to be optimized in a chart form. In the actual using process, a designer eliminates the architectural form design which does not conform to the actual situation according to the experience of the designer and the other related requirements such as structural requirements, construction difficulty, construction cost and the like in the actual project.
Meanwhile, the street area optimization method based on wind environment simulation provided by the invention is compared with an actual field test result and verified, and the street area optimization method has better reliability, calculation performance and optimization effect.
Example two
The invention provides a block form design device based on wind environment simulation. As shown in fig. 2, an internal structure of a block configuration designing apparatus based on wind environment simulation according to an embodiment of the present invention is schematically illustrated.
In this embodiment, the block configuration designing apparatus based on the wind environment simulation may be a PC (Personal Computer), or may be a terminal device such as a smart phone, a tablet Computer, or a mobile Computer. This block form design device based on wind environment simulation includes at least: a processor 12, a communication bus 13, a network interface 14, and a memory 11.
The memory 11 includes at least one type of readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, and the like. The memory 11 may be an internal storage unit of the wind environment simulation-based block configuration designing apparatus in some embodiments, for example, a hard disk of the wind environment simulation-based block configuration designing apparatus. The memory 11 may also be an external storage device of the block configuration designing apparatus based on the wind environment simulation in other embodiments, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the block configuration designing apparatus based on the wind environment simulation. Further, the memory 11 may also include both an internal storage unit and an external storage device of the block configuration designing apparatus based on the wind environment simulation. The memory 11 may be used not only to store application software installed in the block configuration designing apparatus based on the wind environment simulation and various types of data, such as codes of the block configuration designing program, but also to temporarily store data that has been output or will be output.
The processor 12 may be a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor or other data Processing chip in some embodiments, and is used for executing program codes or Processing data stored in the memory 11, such as executing a block shape design program.
The communication bus 13 is used to realize connection communication between these components.
The network interface 14 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), and is typically used to establish a communication link between the block configuration device based on wind environment simulation and other electronic devices.
Optionally, the block form design device based on wind environment simulation may further include a user interface, the user interface may include a Display (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface may further include a standard wired interface and a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, or the like. The display, which may also be referred to as a display screen or display unit, is suitable for displaying information processed in the wind environment simulation-based block configuration designing apparatus and for displaying a visualized user interface.
Fig. 2 only shows the block configuration designing apparatus based on wind environment simulation having the components 11 to 14 and the block configuration designing program, and those skilled in the art will understand that the structure shown in fig. 2 does not constitute a limitation of the block configuration designing apparatus based on wind environment simulation, and may include fewer or more components than those shown, or combine some components, or arrange different components.
In the embodiment of the block configuration designing apparatus based on wind environment simulation shown in fig. 2, a block configuration designing program is stored in the memory 11; the processor 12 implements the following steps when executing the block shape design program stored in the memory 11:
establishing a model base: acquiring relevant data of a city block and generating a city terrain building model by taking the block as a basic composition unit; the urban terrain building model comprises a plurality of different blocks and building economic and technical indexes in each block;
and (3) form simulation: selecting a site to be optimized from the city block, determining the block in the site to be optimized, acquiring the architectural economic technical index in the corresponding block according to the block in the site to be optimized, establishing a wind tunnel according to the climate condition, and simulating the architectural economic technical index in each block in the site to be optimized and the wind tunnel according to a computer simulation method to obtain a simulation result; the simulation result comprises the architectural shape of each block in the site to be optimized and the index of the wind environment condition;
and (3) optimizing: optimizing the simulation result according to a multi-objective optimization algorithm, judging whether the site to be optimized meets a preset block design specification or not according to the optimization result of each optimization, if so, taking the optimization result as the architectural shape design of the site to be optimized, and executing a shape simulation step to continue simulating the site to be optimized by changing the parameters of the wind tunnel; until the end-of-cycle condition is satisfied.
Further, the preset neighborhood design specification comprises specification requirements and design requirements; wherein the code requirements comprise a building red line and a building concession line; the design requirements include the volume ratio of the building, the number of towers, the positions of the skirt houses and the height of the skirt houses.
Further, the model base establishing step includes:
acquiring relevant data of a city block through an internet data platform; the internet data platform comprises a geographic space data cloud, an OpenStreetMap, a high-grade map and a Baidu map;
integrating relevant data of the city block by ArcGIS software to generate a city terrain building model by taking the block as a basic construction unit;
and acquiring the block form type of each block according to roads in the city block, and calculating to obtain the architectural economic technical index of each block.
Further, the morphology simulating step includes:
selecting a site to be optimized which needs design optimization from city blocks, and determining the block type of each block in the site to be optimized and the architectural economic technical index in the corresponding block;
and setting a simulation range according to the size of the field to be optimized, and performing CFD simulation on the field to be optimized by adopting a computer simulation method to obtain a simulation result.
Further, the morphology simulating step includes: acquiring weather conditions according to meteorological data; the wind tunnel comprises wind tunnel size, wind speed, wind direction and grid fineness.
Further, the indexes of the wind environment condition include an average wind speed, a comfortable wind speed area ratio, a quiet wind area ratio, and a comfortable wind dispersion.
Further, the processor 12 implements the following steps when executing the block shape design program stored in the memory 11: a screening step: and arranging and analyzing according to the building form design of the site to be optimized obtained after optimization, eliminating the building form design which does not accord with the actual requirement, and displaying the screened building form design of the site to be optimized in a chart form.
Further, the optimizing step specifically includes: combining a genetic algorithm and a pareto optimal algorithm, simulating the site to be optimized by performing the morphological simulation step for multiple times, calculating a pareto optimal solution, and screening the pareto optimal solution according to the building aesthetic requirements and the block design specifications to obtain the site to be optimized.
EXAMPLE III
A storage medium which is a computer-readable storage medium having a neighborhood shape designing program stored thereon, the neighborhood shape designing program being a computer program, the neighborhood shape designing program realizing the following steps when executed by a processor:
establishing a model base: acquiring relevant data of a city block and generating a city terrain building model by taking the block as a basic composition unit; the urban terrain building model comprises a plurality of different blocks and building economic and technical indexes in each block;
and (3) form simulation: selecting a site to be optimized from the city block, determining the block in the site to be optimized, acquiring the architectural economic technical index in the corresponding block according to the block in the site to be optimized, establishing a wind tunnel according to the climate condition, and simulating the architectural economic technical index in each block in the site to be optimized and the wind tunnel according to a computer simulation method to obtain a simulation result; the simulation result comprises the architectural shape of each block in the site to be optimized and the index of the wind environment condition;
and (3) optimizing: optimizing the simulation result according to a multi-objective optimization algorithm, judging whether the site to be optimized meets a preset block design specification or not according to the optimization result of each optimization, if so, taking the optimization result as the architectural shape design of the site to be optimized, and executing a shape simulation step to continue simulating the site to be optimized by changing the parameters of the wind tunnel; until the end-of-cycle condition is satisfied.
Further, the preset neighborhood design specification comprises specification requirements and design requirements; wherein the code requirements comprise a building red line and a building concession line; the design requirements include the volume ratio of the building, the number of towers, the positions of the skirt houses and the height of the skirt houses.
Further, the model base establishing step includes:
acquiring relevant data of a city block through an internet data platform; the internet data platform comprises a geographic space data cloud, an OpenStreetMap, a high-grade map and a Baidu map;
integrating relevant data of the city block by ArcGIS software to generate a city terrain building model by taking the block as a basic construction unit;
and acquiring the block form type of each block according to roads in the city block, and calculating to obtain the architectural economic technical index of each block.
Further, the morphology simulating step includes:
selecting a site to be optimized which needs design optimization from city blocks, and determining the block type of each block in the site to be optimized and the architectural economic technical index in the corresponding block;
and setting a simulation range according to the size of the field to be optimized, and performing CFD simulation on the field to be optimized by adopting a computer simulation method to obtain a simulation result.
Further, the morphology simulating step includes: acquiring weather conditions according to meteorological data; the wind tunnel comprises wind tunnel size, wind speed, wind direction and grid fineness.
Further, the indexes of the wind environment condition include an average wind speed, a comfortable wind speed area ratio, a quiet wind area ratio, and a comfortable wind dispersion.
Further, the block shape design program realizes the following steps when being executed by the processor: a screening step: and arranging and analyzing according to the building form design of the site to be optimized obtained after optimization, eliminating the building form design which does not accord with the actual requirement, and displaying the screened building form design of the site to be optimized in a chart form.
Further, the optimizing step specifically includes: combining a genetic algorithm and a pareto optimal algorithm, simulating the site to be optimized by performing the morphological simulation step for multiple times, calculating a pareto optimal solution, and screening the pareto optimal solution according to the building aesthetic requirements and the block design specifications to obtain the site to be optimized.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A method for designing a block form based on wind environment simulation is characterized by comprising the following steps:
establishing a model base: acquiring relevant data of a city block and generating a city terrain building model by taking the block as a basic composition unit; the urban terrain building model comprises a plurality of different blocks and building economic and technical indexes in each block;
and (3) form simulation: selecting a site to be optimized from the city block, determining the block in the site to be optimized, acquiring the architectural economic technical index in the corresponding block according to the block in the site to be optimized, establishing a wind tunnel according to the climate condition, and simulating the architectural economic technical index in each block in the site to be optimized and the wind tunnel according to a computer simulation method to obtain a simulation result; the simulation result comprises the architectural shape of each block in the site to be optimized and the index of the wind environment condition;
and (3) optimizing: optimizing the simulation result according to a multi-objective optimization algorithm, judging whether the site to be optimized meets a preset block design specification or not according to the optimization result of each optimization, if so, taking the optimization result as the architectural shape design of the site to be optimized, and executing a shape simulation step to continue simulating the site to be optimized by changing the parameters of the wind tunnel; until the end-of-cycle condition is satisfied.
2. The method of claim 1, wherein the preset neighborhood design specifications comprise specification requirements and design requirements; wherein the code requirements comprise a building red line and a building concession line; the design requirements include the volume ratio of the building, the number of towers, the positions of the skirt houses and the height of the skirt houses.
3. The method of claim 1, wherein the model base building step comprises:
acquiring relevant data of a city block through an internet data platform; the internet data platform comprises a geographic space data cloud, an OpenStreetMap, a high-grade map and a Baidu map;
integrating relevant data of the city block by ArcGIS software to generate a city terrain building model by taking the block as a basic construction unit;
and acquiring the block form type of each block according to roads in the city block, and calculating to obtain the architectural economic technical index of each block.
4. The method of claim 1, wherein the step of simulating the shape of the street comprises:
selecting a site to be optimized which needs design optimization from city blocks, and determining the block type of each block in the site to be optimized and the architectural economic technical index in the corresponding block;
and setting a simulation range according to the size of the field to be optimized, and performing CFD simulation on the field to be optimized by adopting a computer simulation method to obtain a simulation result.
5. The method of claim 4, wherein the step of simulating the shape of the street comprises: acquiring weather conditions according to meteorological data; the wind tunnel comprises wind tunnel size, wind speed, wind direction and grid fineness.
6. The method of claim 1, wherein the index of the wind environment condition includes an average wind speed, a comfortable wind speed area ratio, a quiet wind area ratio, and a comfortable wind dispersion.
7. The method of claim 1, further comprising the step of screening: and arranging and analyzing according to the building form design of the site to be optimized obtained after optimization, eliminating the building form design which does not accord with the actual requirement, and displaying the screened building form design of the site to be optimized in a chart form.
8. The method for designing a street configuration based on wind environment simulation of claim 1, wherein the optimizing step comprises: combining a genetic algorithm and a pareto optimal algorithm, simulating the site to be optimized by performing the morphological simulation step for multiple times, calculating a pareto optimal solution, and screening the pareto optimal solution according to the building aesthetic requirements and the block design specifications to obtain the site to be optimized.
9. The block form design device based on wind environment simulation comprises a memory and a processor, wherein a block form design program which can run on the processor is stored in the memory, the block form design program is a computer program, and the block form design device is characterized in that: the processor, when executing the block shape design program, implements the block shape design method based on wind environment simulation according to any one of claims 1 to 8.
10. A storage medium which is a computer-readable storage medium having a neighborhood shape designing program stored thereon, the neighborhood shape designing program being a computer program characterized in that: the block shape design program when executed by a processor implements the steps of the block shape design method based on wind environment simulation as claimed in any one of claims 1 to 8.
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