CN203643466U - Novel probe used for measuring wind speed of surface of structure in wind tunnel test - Google Patents
Novel probe used for measuring wind speed of surface of structure in wind tunnel test Download PDFInfo
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- CN203643466U CN203643466U CN201320832550.0U CN201320832550U CN203643466U CN 203643466 U CN203643466 U CN 203643466U CN 201320832550 U CN201320832550 U CN 201320832550U CN 203643466 U CN203643466 U CN 203643466U
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- cylindrical shell
- end plate
- wind speed
- shell body
- pressure measuring
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Abstract
The utility model discloses a novel probe used for measuring wind speed of a surface of a structure in a wind tunnel test. The novel probe comprises a hollow cylindrical shell body and a long pressure measuring pipe with a bending of 90 degrees. The upper end and the lower end of the cylindrical shell body are respectively equipped with a round upper end plate and a lower end plate sealing the hollow outlets. The centers of the upper end plate and the lower end plate are equipped with a central hole respectively. Collection holes are uniformly arranged at the edge of the upper end plate along the concentric circles of the upper end plate. The lower end of the cylindrical shell body is equipped with a cylinder closely. The side wall of the cylindrical shell body is horizontally equipped with a short pressure measuring pipe in direct communication with the hollow of the cylindrical shell body. One side of the long pressure measuring pipe is arranged to go through the central holes of the upper end plate and the lower end plate vertically, and the other side of the long pressure measuring pipe goes through and extends out of the side surface of the cylinder. The novel probe is advantaged by small size, low cost and easy processing, and overcomes the defect that a cantilever one end of a long pressure measuring pipe of an Owen probe is too long and is easy to warp, and therefore astatism of the wind speed to be measured is guaranteed and the real wind speed of an incoming flow direction can be measured accurately.
Description
Technical field
The utility model relate to a kind of in wind tunnel test for measuring the new detector of body structure surface wind speed, especially can guarantee that surveyed wind speed is the true wind speed of flow path direction.
Background technology
At present, mainly contain hot line, Irving's probe for the sensor of wind tunnel test measuring wind speed.Wherein hot line is to a kind of special tinsel heating, because thereby the different wind speed different heat that can dissipate causes tinsel resistance to change, obtain wind speed size with this principle, but a whole set of hot line testing apparatus cost is high, easily damage and be subject to extraneous thermal effect larger; Irving's probe is the leeway by measuring long and short pressure pipe and obtains pedestrian level place wind speed by Bernoulli equation, its cost is lower and easy for installation, but long pressure pipe one end cantilever is long, in practical operation, very easily touched askew, make it and carry out an angle of flow path direction existence, the pedestrian level place wind speed recording like this has directivity, and therefore measured wind speed exists certain error.
Utility model content
For above-mentioned technical matters, the utility model is intended to solve the problems of the technologies described above at least to a certain extent.
Due to Irving probe have cost low, be easy to the advantages such as installation, in order to overcome, its long pressure pipe cantilever is long easily to be touched askew and is caused the inaccurate shortcoming of survey incoming flow wind speed, the utility model provides a kind of novel Pedestrian Level Winds survey sensor by improvement technology on the basis of existing Irving's probe, its cost is low, be easy to install, and can guarantee the wind speed of surveying non-directional, can survey the true wind speed of flow path direction.
The utility model solves the scheme that its technical matters adopts:
A kind of for measuring the new detector of wind tunnel test body structure surface wind speed, comprise hollow circular cylindrical shell, be the long pressure pipe of 90 degree bendings, described circular cylindrical shell upper end and lower end are respectively arranged with the circular upper head plate and the bottom plate that seal its hollow outlet, described upper head plate and bottom plate center are provided with center pit, and described upper head plate edge is provided with uniformly and gathers hole along the concentric circles of upper head plate, described circular cylindrical shell lower end is close to and is provided with right cylinder, described circular cylindrical shell sidewall horizontal is provided with the short pressure pipe of straight-through circular cylindrical shell hollow position, one side of described long pressure pipe vertically penetrates and is arranged in the center pit of described upper head plate and bottom plate, another side level is passed and is extended to outside cylindrical sidewall.
The beneficial effects of the utility model are: volume is little, cost is low, easy to process, principle is simple, improve Irving's long pressure pipe one end cantilever of popping one's head in long and easily touched askew shortcoming, thereby having guaranteed that survey wind speed is non-directional, can Measurement accuracy have carried out the true wind speed of flow path direction, can be therefore the mensuration of wind speed field for the pedestrian level wind environment of wind tunnel test in batches.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of the utility model embodiment.
Fig. 2 is that schematic diagram is looked on a left side of the utility model embodiment.
Fig. 3 is the A-A cross-sectional schematic of Fig. 1.
Shown in figure, be: the long pressure pipe of 1-; 2-upper head plate; 3-circular cylindrical shell; 4-bottom plate; 5-right cylinder; The short pressure pipe of 6-; 7-gathers hole.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figures 1 to 3, a kind of for measuring the new detector of wind tunnel test body structure surface wind speed, it is characterized in that: comprise hollow circular cylindrical shell 3, be the long pressure pipe 1 of 90 degree bendings, described circular cylindrical shell 3 upper ends and lower end are respectively arranged with the circular upper head plate 2 and the bottom plate 4 that seal its hollow outlet, described upper head plate 2 and bottom plate center are provided with center pit, and described upper head plate 2 edges are provided with uniformly and gather hole 7 along the concentric circles of upper head plate 2, described circular cylindrical shell 3 lower ends are close to and are provided with right cylinder 5, described circular cylindrical shell 3 sidewall horizontal are provided with the short pressure pipe 6 of straight-through circular cylindrical shell 3 hollow positions, one side of described long pressure pipe 1 vertically penetrates in the center pit that is arranged on described upper head plate 2 and bottom plate 4, another side level is passed and is extended to outside right cylinder 5 sidewalls.
In the present embodiment, described upper head plate 2 is drilled with 9 apertures (1, center, collection hole 7 have 8), and bottom plate 4 is provided with a center pit, and long pressure pipe 1 pierces into from right cylinder 5 lateral walls, and passes from the center pit of circular cylindrical shell 3 upper head plates 2; Short pressure pipe 6 directly pierces into and is connected with its internal cavities from circular cylindrical shell 3 lateral walls.
In the present embodiment, the external diameter 10mm of circular cylindrical shell 3, internal diameter 6mm, high 30mm; Right cylinder 5 external diameter 10mm; Long pressure pipe 1 internal diameter 1mm, it pierces into from right cylinder lateral wall, and overhanging end 10mm pierces into a little from bottom 4mm, and passes from the center pit of upper head plate 2, and overhanging end can have 4mm, 5mm and tri-kinds of specifications of 6mm; Short pressure pipe 6 internal diameter 1mm, it pierces into from circular cylindrical shell 3 lateral walls, and overhanging end 10mm pierces into a little from bottom 10.5mm.
When the utility model uses in wind tunnel test, it is vertically fixed on to empirical model periphery, long pressure pipe 1 is connected with pressure-measuring system with short pressure pipe 6 with PVC flexible pipe, pressure-measuring system is connected automatically to gather blast Dynamic Signal again with computer, and then obtain the leeway between long pressure pipe 1, short pressure pipe 6, and calculate the incoming flow wind speed size at pedestrian level place by Bernoulli equation.According to wind tunnel experiment needs, also can arrange that in batches multiple this pops one's head in to obtain the wind speed field at empirical model periphery pedestrian level place at empirical model periphery.
Above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.All any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in the protection domain of the utility model claim.
Claims (1)
1. one kind for measuring the new detector of wind tunnel test body structure surface wind speed, it is characterized in that: comprise hollow circular cylindrical shell (3), be the long pressure pipe (1) of 90 degree bendings, described circular cylindrical shell (3) upper end and lower end are respectively arranged with the circular upper head plate (2) and the bottom plate (4) that seal its hollow outlet, described upper head plate (2) and bottom plate (4) center are provided with center pit, and described upper head plate (2) edge is provided with uniformly and gathers hole (7) along the concentric circles of upper head plate (2), described circular cylindrical shell (3) lower end is close to and is provided with right cylinder (5), described circular cylindrical shell (3) sidewall horizontal is provided with the short pressure pipe (6) of straight-through circular cylindrical shell (3) hollow position, one side of described long pressure pipe (1) vertically penetrates in the center pit that is arranged on described upper head plate (2) and bottom plate (4), another side level is passed and is extended to outside right cylinder (5) sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832550.0U CN203643466U (en) | 2013-12-16 | 2013-12-16 | Novel probe used for measuring wind speed of surface of structure in wind tunnel test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832550.0U CN203643466U (en) | 2013-12-16 | 2013-12-16 | Novel probe used for measuring wind speed of surface of structure in wind tunnel test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643466U true CN203643466U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320832550.0U Expired - Fee Related CN203643466U (en) | 2013-12-16 | 2013-12-16 | Novel probe used for measuring wind speed of surface of structure in wind tunnel test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713153A (en) * | 2013-12-16 | 2014-04-09 | 华南理工大学 | Novel probe for measuring structure surface wind speed in wind tunnel test |
-
2013
- 2013-12-16 CN CN201320832550.0U patent/CN203643466U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713153A (en) * | 2013-12-16 | 2014-04-09 | 华南理工大学 | Novel probe for measuring structure surface wind speed in wind tunnel test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |