CN114722470A - Pretreatment method for green building environment simulation model - Google Patents
Pretreatment method for green building environment simulation model Download PDFInfo
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- CN114722470A CN114722470A CN202210370091.2A CN202210370091A CN114722470A CN 114722470 A CN114722470 A CN 114722470A CN 202210370091 A CN202210370091 A CN 202210370091A CN 114722470 A CN114722470 A CN 114722470A
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- 238000004088 simulation Methods 0.000 title claims abstract description 25
- 238000002203 pretreatment Methods 0.000 title claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 20
- 238000013178 mathematical model Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000004364 calculation method Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 239000004566 building material Substances 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000005094 computer simulation Methods 0.000 abstract description 2
- 238000012937 correction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
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Abstract
The invention discloses a pretreatment method of a green building environment simulation model, and belongs to the technical field of computer modeling. The invention realizes the pretreatment of the green building environment simulation model by three steps of building a sunshine analysis model, building a mathematical model and simulating construction. By establishing the mathematical model, the invention can lead technicians in the field to work according to the modified mathematical modeling and then to readjust and modify the newly-performed mathematical modeling until the design requirement is met, and can realize the guidance of the wind field model correction work by establishing the mathematical model. According to the invention, the KA-GO electromagnetic scattering model is utilized, so that the target electromagnetic scattering model can be accurately established. The establishment of the standardized system of the green building wind environment simulation flow not only needs to be responsible for the division of labor of the simulation flow, but also makes the responsibility and division of labor clear; the whole process of the simulation flow is also required to be controlled, the simulation progress and correctness are mastered in real time, and unnecessary work repetition of the project is reduced.
Description
Technical Field
The invention belongs to the technical field of computer modeling, and particularly relates to a pretreatment method of a green building environment simulation model.
Background
Green buildings, also known as green buildings, or sustainable buildings, are designed by creative structures and uses to minimize the environmental impact and save resources throughout the building's life cycle. Including site selection, design, construction, operation, maintenance, renovation and demolition of the building. Aiming at building wind environment simulation, along with the rapid development of distributed energy and urbanization process, the wind energy utilization of urban building environment gradually draws attention of people.
At present, urban buildings gather, the building appearance is different, the layout is different, and the landform environment difference of locating has increased the resistance when wind flows, has reduced city wind speed. However, since the ground surface of a city is rough like a mountainous area with a complex terrain, and the wind ports in the street and between two high buildings have an obvious wind collecting effect, local strong wind can be produced in a low wind speed area to generally replace buildings with simple models, and the distribution situation of wind energy in a building group cannot be truly reflected.
Disclosure of Invention
The invention aims to provide a pretreatment method of a green building environment simulation model, which can reduce the resistance when wind flows and can truly reflect the wind energy distribution condition in a building group.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pretreatment method for a green building environment simulation model comprises the following steps:
1) establishing a sunshine analysis model: acquiring building characteristic parameters of a building to be analyzed, simultaneously importing meteorological condition parameters to obtain a sunshine analysis model, then carrying out partition processing on the sunshine analysis model, and calculating the illumination intensity of each area;
2) establishing a mathematical model: establishing a wind field mathematical model, establishing a local coordinate system by taking a mirror reflection point as an original point, establishing a KA-GO electromagnetic scattering model, and simultaneously determining historical meteorological information under the wind field model;
3) and (3) construction simulation: the construction process is simulated through modeling, then the data of a construction building are detected through detection equipment, a construction site is measured through a three-dimensional laser scanner, and then at least one piece of construction safety evaluation data is selected, so that the simulated construction result of the green building model is obtained.
Further, the characteristic parameters in the step 1) are building height and length, building materials and building space coordinates.
Further, sampling processing is carried out on each area of the sunshine analysis model in the step 1) by adopting an interval delta t.
Further, the meteorological parameters in the step 1) include annual sun and sunshine orientation and altitude, sunshine time and sunshine intensity, and the calculation formula of the sun altitude is sinH ═ sin Φ sin δ + cos Φ cos δ cost.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the green building environment simulation model, firstly, an analysis model is established for sunlight, the sunlight is divided into different areas, and the areas are subjected to block analysis, so that the optimal analysis model is obtained, and the optimal illumination can be irradiated in a building.
2) By establishing the mathematical model, the invention can lead field technicians to work according to the modified mathematical modeling and then to readjust and modify the newly-performed mathematical modeling until the design requirements are met, and can realize the guidance of the wind field model correction work by establishing the mathematical model. According to the invention, the KA-GO electromagnetic scattering model is utilized, so that the target electromagnetic scattering model can be accurately established.
3) The establishment of the standardized system of the green building wind environment simulation flow not only needs to be responsible for the division of labor of the simulation flow, but also makes the responsibility and division of labor clear; the whole process of the simulation flow is also required to be controlled, the simulation progress and correctness are mastered in real time, and unnecessary work repetition of the project is reduced. The former may be selected as a reasonable calculation region when Cu is less than or equal to 4%, and the latter may be selected as a reasonable calculation region when Cu is greater than 4%.
Detailed Description
Embodiments of the present invention will be described in more detail below. It should be understood, however, that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Those skilled in the art will recognize that alternative embodiments may be made from the following description without departing from the spirit and scope of the invention.
Examples
A pretreatment method for a green building environment simulation model comprises the following steps:
1) establishing a sunshine analysis model: acquiring building characteristic parameters of a building to be analyzed, simultaneously importing meteorological condition parameters to obtain a sunshine analysis model, then carrying out partition processing on the sunshine analysis model, and calculating the illumination intensity of each area; the characteristic parameters are building height and length, building materials and building space coordinates. And sampling each area of the sunshine analysis model at an interval delta t. The meteorological parameters comprise annual sun and sunshine direction and altitude, sunshine time and sunshine intensity, and the calculation formula of the sun altitude is sinH (sin phi sin delta + cos phi cos delta cost).
Wherein H is the solar altitude, φ is the local geographical latitude, δ is the solar declination of the current day, and t is the current solar hour angle. The solar time angle (t) is calculated by the formula t 15 × (ST-12), where ST is true sun, true sun time is beijing time + time difference, time difference is (local longitude-120 °)/15 °, sin δ is 0.39795cos [0.98563(N-173) ], N is product day, and represents a number in one year, for example, "1" represents 1 month and 1 day, "365" or "366" represents 12 months and 31 days, solar time angle at noon is 0 degree, and solar time angle at sunrise in second-half day is 90 degrees.
H is the solar altitude angle, and the calculation formula is
sinH＝sinφsinδ+cosφcosδcost；
And the sunshine analysis model performs sampling processing by adopting a partition interval delta t and detects the longitude and latitude coordinates of each detection area.
2) Establishing a mathematical model: a wind field mathematical model is established, a local coordinate system is established by taking the mirror reflection point as an original point, and the local coordinate system of the green building is determined, so that the establishment of the model can be well realized, and the combination with an entity is achieved. Establishing a KA-GO electromagnetic scattering model, and simultaneously determining historical meteorological information under the wind field model; the model in the sunshine analysis model is divided randomly and is trained moderately, so that the scattered field of the target area of the electromagnetic scene is predicted.
3) Construction simulation: the construction process is simulated through modeling, then the data of a construction building are detected through detection equipment, a construction site is measured through a three-dimensional laser scanner, and then at least one piece of construction safety evaluation data is selected, so that the simulated construction result of the green building model is obtained.
The method comprises the following steps of setting the height of a target building to be h, setting the distances between the top of an area and the roof of the target building to be 4h, 5h, 6h and 7h respectively, setting the distances in the incoming flow direction to be 5h, 6h, 7h and 8h respectively, setting the distances between the left side and the right side of the area and the target building to be 4h, 5h, 6h and 7h respectively, setting the lengths of outflow boundaries to be 6h, 7h, 8h and 9h respectively, and detecting the wind speed herein specifically as follows:
wherein: u shape6hCalculating the average wind speed of a certain measuring point at 5m around the target building when the distance between the regional outflow boundary and the target building is 6 h;
U7h-calculating the average wind speed at a certain measuring point 5m around the target building when the distance between the region outflow boundary and the target building is 7 h.
The former may be selected as a reasonable calculation region when Cu is less than or equal to 4%, and the latter may be selected as a reasonable calculation region when Cu is greater than 4%.
The above description is only for the specific embodiments of the present disclosure, but the scope of the embodiments of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes, substitutions or combinations within the technical scope of the embodiments of the present disclosure or under the concept of the embodiments of the present disclosure, and all of them should be covered by the scope of the embodiments of the present disclosure.
Claims (4)
1. A pretreatment method for a green building environment simulation model is characterized by comprising the following steps:
1) establishing a sunshine analysis model: acquiring building characteristic parameters of a building to be analyzed, simultaneously importing meteorological condition parameters to obtain a sunshine analysis model, then carrying out partition processing on the sunshine analysis model, and calculating the illumination intensity of each area;
2) establishing a mathematical model: establishing a wind field mathematical model, establishing a local coordinate system by taking a specular reflection point as an original point, establishing a KA-GO electromagnetic scattering model, and simultaneously determining historical meteorological information under the wind field model;
3) and (3) construction simulation: the construction process is simulated through modeling, then the data of a construction building are detected through detection equipment, a construction site is measured through a three-dimensional laser scanner, and then at least one piece of construction safety evaluation data is selected, so that the simulated construction result of the green building model is obtained.
2. The method for preprocessing the green building environment simulation model according to claim 1, wherein the characteristic parameters in the step 1) are building height and length, building materials and building space coordinates.
3. The method for preprocessing the green building environment simulation model according to claim 1, wherein sampling processing is performed on each area of the sunshine analysis model in the step 1) at an interval Δ t.
4. The method for preprocessing the green building environment simulation model according to claim 1, wherein the meteorological parameters in the step 1) include annual solar sunshine orientation and altitude, sunshine duration and sunshine intensity, and the calculation formula of the solar altitude is sinH ═ sin Φ sin δ + cos Φ cos δ cost.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116128310A (en) * | 2023-04-13 | 2023-05-16 | 广东广宇科技发展有限公司 | Fire safety assessment method for ancient cultural relic building |
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| CN101894183A (en) * | 2010-07-02 | 2010-11-24 | 重庆星能建筑节能技术发展有限公司 | Method for analyzing and designing green building |
| KR20160034488A (en) * | 2014-09-19 | 2016-03-30 | 단국대학교 산학협력단 | Method of integrated real-time predictable building energy management system using a smart thermostat |
| CN107798201A (en) * | 2017-11-15 | 2018-03-13 | 苏州联讯图创软件有限责任公司 | The Sunlight Analysis method of BUILDINGS MODELS |
| CN110569533A (en) * | 2019-07-22 | 2019-12-13 | 滨州职业学院 | BIM modeling-based green building energy-saving construction method |
| CN112765711A (en) * | 2021-01-19 | 2021-05-07 | 中岚绿设(厦门)建筑科技有限公司 | BIM modeling method for green building simulation calculation |
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- 2022-04-08 CN CN202210370091.2A patent/CN114722470A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101894183A (en) * | 2010-07-02 | 2010-11-24 | 重庆星能建筑节能技术发展有限公司 | Method for analyzing and designing green building |
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| CN107798201A (en) * | 2017-11-15 | 2018-03-13 | 苏州联讯图创软件有限责任公司 | The Sunlight Analysis method of BUILDINGS MODELS |
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| CN116128310A (en) * | 2023-04-13 | 2023-05-16 | 广东广宇科技发展有限公司 | Fire safety assessment method for ancient cultural relic building |
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