CN104865042A - Building wind tunnel adjustable wind speed profile passive simulation wedge device - Google Patents
Building wind tunnel adjustable wind speed profile passive simulation wedge device Download PDFInfo
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- CN104865042A CN104865042A CN201510204355.7A CN201510204355A CN104865042A CN 104865042 A CN104865042 A CN 104865042A CN 201510204355 A CN201510204355 A CN 201510204355A CN 104865042 A CN104865042 A CN 104865042A
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- wind
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- width adjusting
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Abstract
The invention relates to a building wind tunnel adjustable wind speed profile passive simulation wedge device and belongs to the technical field of a building wind tunnel test. The device comprises a base which is arranged on a bottom surface of a wind tunnel; a wedge body, wherein the bottom portion of the wedge body is fixedly connected with the base, and the wedge body comprises a middle plate and a wing plate, one edge of the middle plate being fixedly connected to one surface of the wing plate to divide the wing plate into a first wing edge and a second wing edge; width adjusting members which are arranged along the first wing edge and the second wing edge and are used for realizing width adjustment of the wedge device through controlling the installation positions of the width adjusting members on the first wing edge and the second wing edge; and a fixation member which is fixedly connected with the top portion of the wedge body and is used for fixing the wedge body to the wind tunnel. The device can realize flexible adjustment of a target wind speed profile in the wind tunnel test process; the process is quick and the simulation precision of the wind speed profile is high; and the wedge device is simple in structure, easy to assemble, wide in applicability and low in production cost.
Description
Technical field
The invention belongs to building wind-tunnel technique field, particularly relate to kind of the adjustable wind of building wind-tunnel and cut open passive simulation wedge device.
Background technology
In building wind tunnel test, need to simulate the wind profile of different landforms, the method generally adopted now is passive simulation method.The way of usual passive simulation method causes different obstructions by different blocking devices to building wind turbine apparatus incoming flow, makes wind speed present required distribution (i.e. wind profile, cuts open also known as wind) at vertical direction.Blocking device mainly comprises wedge and roughness element.Wedge stands on upwind, and upper and lower width is different, causes different obstructions to make upper and lower wind speed different to air.
Way general at present is roughly determined the size of wedge before the test, and then processing and fabricating wedge, tests subsequently in actual wind-tunnel.There is following problem in this way:
1, wedge complete after width be difficult to change.Because of the complicacy of wind tunnel test situation, the wedge adopting analogy method to make is difficult to the requirement accurately meeting experimenter.Test according to this wedge, the precision of test figure will inevitably be reduced, cause the inaccurate of test findings.If again make wedge, rising and the increase of test period of experimentation cost just must be caused.
2, the wedge completed can only meet the wind speed profile modeling under single scaling factor, if carry out the test of many scaling factors operating mode, will make wedge separately and cause rising of experimentation cost.
Summary of the invention
The invention provides the adjustable wind of a kind of building wind-tunnel and cut open passive simulation wedge device, technical matters to be solved is that after the wedge of prior art completes, width is difficult to change, wedge is difficult to the requirement accurately meeting experimenter, and the wedge completed can only meet the wind speed profile modeling under single scaling factor, experimentation cost is high.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: the adjustable wind of a kind of building wind-tunnel cuts open passive simulation wedge device, and it comprises:
Base, described floor installation is on the bottom surface of wind-tunnel;
Wedge body, the bottom of described wedge body is fixedly connected with described base; Wedge body comprises middle plate and wing plate, the one side being fixedly connected on described wing plate of described middle plate, makes wing plate be divided into the first wing limit and the second wing limit;
Width adjusting part, installs along described first wing limit and the second wing limit respectively, to realize the width adjusting of wedge device by controlling width adjusting part in the installation site on described first wing limit and the second wing limit;
Fixture, described fixture is fixedly connected with the top of wedge body, for wedge body is fixed on wind-tunnel.
The present invention builds the adjustable wind of wind-tunnel as above and cuts open passive simulation wedge device, and further, described first wing limit has spaced through hole; Described second wing limit has spaced through hole; The two ends of described width adjusting part are arranged at intervals with fixed orifice; Width adjusting part is arranged on the first wing limit and the second wing limit through corresponding fixed orifice and through hole by bolt respectively.
The present invention builds the adjustable wind of wind-tunnel as above and cuts open passive simulation wedge device, and further, the side of described width adjusting part has groove, and the cross section of width adjusting part is " Π " shape, the groove of width adjusting part can be entered the first wing limit and/or the second wing limit.
The present invention builds the adjustable wind of wind-tunnel as above and cuts open passive simulation wedge device, and further, described first wing limit has the through hole that 4 ~ 8cm distance in interval is arranged; Described second wing limit has the through hole that 4 ~ 8cm distance in interval is arranged.
The present invention builds the adjustable wind of wind-tunnel as above and cuts open passive simulation wedge device, and further, described fixture comprises: topmast strut, and one end of described topmast strut is fixedly connected with the top of described wedge body, and the other end is screw rod; Length adjustment screw, described length adjustment screw is screwed on described screw rod.
The invention has the beneficial effects as follows:
1, the present invention can meet the flexible to target wind speed section in wind tunnel test process, and process is rapid, and wind speed profile modeling precision is high.Traditional Wedge structure can only realize fine setting by the structure such as roughness element or rack saw to subaerial wind profile, and name of the present invention can regulate the arbitrary height of wind profile, and range of adjustment is large, precision is high, thus substantially increase the precision of test, save in test the time regulating wind profile.
2, structure simple, be easy to assembling, applicability is wide, cost of manufacture is low.Native system composition structure is few, is easy to assembling, cost of manufacture relative moderate, relative to traditional Wedge structure, can realize the adjustment requirement tested for multiple scaling factor, being suitable for scaling factor scope is 1/600-1/200, and the wind profile that can be applied to current most building wind-tunnel regulates.
Accompanying drawing explanation
The adjustable wind of one building wind-tunnel that Fig. 1 provides for the embodiment of the present invention cuts open passive simulation wedge device schematic diagram;
Fig. 2 is the schematic side view of Fig. 1;
Fig. 3 is the A-A schematic cross-section of Fig. 1;
A kind of width adjusting part schematic diagram that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is the schematic side view of Fig. 4.
In accompanying drawing, the list of parts representated by each label is as follows:
1, base, 2, wedge body, 21, wing plate, 22, middle plate, 23, through hole, 3, topmast strut, 4, length adjustment screw, 5, width adjusting part, 51, fixed orifice.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
The embodiment of the present invention needs the problem solved to be: after the wedge of prior art completes, width is difficult to change, and can not realize local modulation, can only be assisted by other servicing unit.This scheme can cause the test period long, the problem that test accuracy is low.In addition, the wedge completed can only meet the wind speed profile modeling under single scaling factor, if the test carrying out many scaling factors operating mode will make wedge separately cause rising of experimentation cost.
As Figure 1-3, the adjustable wind of one building wind-tunnel provided for the embodiment of the present invention cuts open passive simulation wedge device schematic diagram.
The adjustable wind of building wind-tunnel cuts open passive simulation wedge device and comprises:
Base 1, described floor installation is on the bottom surface of wind-tunnel;
Wedge body 2, the bottom of described wedge body 2 is fixedly connected with described base 1; Wedge body comprises middle plate 22 and wing plate 21, the one side being fixedly connected on described wing plate 21 of described middle plate 22, makes wing plate 21 be divided into the first wing limit and the second wing limit;
Width adjusting part 5, installs along described first wing limit and the second wing limit respectively, to realize the width adjusting of wedge device by controlling width adjusting part 5 in the installation site on described first wing limit and the second wing limit;
Fixture, described fixture is fixedly connected with the top of wedge body 2, for wedge body is fixed on wind-tunnel.
The present invention builds the adjustable wind of wind-tunnel, and to cut open the use procedure of passive simulation wedge device as follows:
Before test, by experimental formula and the size of numerical simulation determination wedge and the installation site of width adjusting part, then width adjusting part is installed along described first wing limit and the second wing limit respectively.During test, base is placed in the design attitude of wind tunnel test, by fixture, wedge device is fixed in wind-tunnel.Test in the wind-tunnel arranging wedge device, the wind profile obtained and target wind are cutd open and contrasts, carry out the adjustment of respective width according to its difference, finally obtain suitable target wind and cut open.
As shown in Figure 1, described first wing limit has spaced through hole 23; Described second wing limit has spaced through hole 23; In specific implementation process, described first wing limit has the through hole 23 that 4 ~ 8cm distance in interval is arranged; Described second wing limit has the through hole 23 that 4 ~ 8cm distance in interval is arranged.In preferred implementation process, described first wing limit has the through hole 23 that 5cm distance in interval is arranged; Described second wing limit has the through hole 23 that 5cm distance in interval is arranged.The spacing of through hole 23 and quantity can also regulate, all within protection scope of the present invention according to the entire length of wedge body, degree of regulation demand.
As shown in Figure 4, the two ends of described width adjusting part 5 are arranged at intervals with fixed orifice 51; Width adjusting part 5 is arranged on the first wing limit and the second wing limit through corresponding fixed orifice 51 and through hole 23 by bolt respectively.
In specific implementation process, width adjusting part has multiple implementation,
As shown in Figure 5, be a kind of width adjusting part schematic diagram of embodiment.The side of described width adjusting part has groove, and the cross section of width adjusting part is " Π " shape, the groove of width adjusting part can be entered the first wing limit and/or the second wing limit.Be arranged on the first wing limit and the second wing limit respectively for the ease of width adjusting part 5 to be formed and low wide and up narrow reduce structure, width adjusting part 5 is the different list of elements of width.Such as, width adjusting part all obtains width and is respectively 30 mm, 35 mm, 45 mm, 55 mm, 65 mm, 75 mm, 85 mm, 95 mm, and groove thickness is 20mm, and the wing plate thickness adapted with it is 20mm.
In the embodiment of another kind of width adjusting part, described width adjusting part is platy structure, and the two ends of width adjusting part are arranged at intervals with fixed orifice; The width adjusting part preparation of this embodiment is more simple and efficient, and the iron plate that in specific implementation process, width adjusting part can adopt hardness higher makes.
In one embodiment, as depicted in figs. 1 and 2, described fixture comprises: topmast strut 3, and one end of described topmast strut 3 is fixedly connected with the top of described wedge body 2, and the other end is screw rod; Length adjustment screw 4, described length adjustment screw is screwed on described screw rod.
The use procedure that the adjustable wind of the present embodiment building wind-tunnel cuts open passive simulation wedge device is as follows:
Base is placed in the design attitude of wind tunnel test, by the length adjustment screw rotating topmast strut end, topmast strut is extended until hold out against with wind-tunnel upper arm, wedge device is fixed in wind-tunnel.
The lateral adjustments of system is realized by the fixed orifice of width adjusting part, the fixed orifice of width adjusting part represents different width, the width adjusting part wind that test obtains current working after described first wing limit and the second wing limit installation is respectively being cutd open, by the contrast cutd open with target wind, select different width adjusting parts to regulate the width of wedge, thus realize the control of wedge device to transverse width.
Longitudinally regulate and jointly realized by the fixed orifice of wedge body and width adjusting part.First wing limit and the second wing limit all have spaced through hole, and different through holes represents different wedge height, and width adjusting part and wedge body are by being connected with the through hole of differing heights, thus the longitudinal direction realizing wedge device regulates.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the adjustable wind of building wind-tunnel cuts open a passive simulation wedge device, it is characterized in that, comprising:
Base, described floor installation is on the bottom surface of wind-tunnel;
Wedge body, the bottom of described wedge body is fixedly connected with described base; Wedge body comprises middle plate and wing plate, the one side being fixedly connected on described wing plate of described middle plate, makes wing plate be divided into the first wing limit and the second wing limit;
Width adjusting part, installs along described first wing limit and the second wing limit respectively, to realize the width adjusting of wedge device by controlling width adjusting part in the installation site on described first wing limit and the second wing limit;
Fixture, described fixture is fixedly connected with the top of wedge body, for wedge body is fixed on wind-tunnel.
2. the adjustable wind of building wind-tunnel according to claim 1 cuts open passive simulation wedge device, it is characterized in that, described first wing limit has spaced through hole; Described second wing limit has spaced through hole; The two ends of described width adjusting part are arranged at intervals with fixed orifice; Width adjusting part is arranged on the first wing limit and the second wing limit through corresponding fixed orifice and through hole by bolt respectively.
3. the adjustable wind of building wind-tunnel according to claim 2 cuts open passive simulation wedge device, it is characterized in that, the side of described width adjusting part has groove, and the cross section of width adjusting part is " Π " shape, the groove of width adjusting part can be entered the first wing limit and/or the second wing limit.
4. the adjustable wind of building wind-tunnel according to Claims 2 or 3 cuts open passive simulation wedge device, it is characterized in that, described first wing limit has the through hole that 4 ~ 8cm distance in interval is arranged; Described second wing limit has the through hole that 4 ~ 8cm distance in interval is arranged.
5. the adjustable wind of building wind-tunnel according to any one of claim 1-3 cuts open passive simulation wedge device, it is characterized in that, described fixture comprises: topmast strut, and one end of described topmast strut is fixedly connected with the top of described wedge body, and the other end is screw rod; Length adjustment screw, described length adjustment screw is screwed on described screw rod.
6. the adjustable wind of building wind-tunnel according to claim 4 cuts open passive simulation wedge device, and it is characterized in that, described fixture comprises: topmast strut, and one end of described topmast strut is fixedly connected with the top of described wedge body, and the other end is screw rod; Length adjustment screw, described length adjustment screw is screwed on described screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204355.7A CN104865042B (en) | 2015-04-27 | 2015-04-27 | One kind building wind-tunnel can adjust wind and cut open passive simulation wedge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204355.7A CN104865042B (en) | 2015-04-27 | 2015-04-27 | One kind building wind-tunnel can adjust wind and cut open passive simulation wedge device |
Publications (2)
| Publication Number | Publication Date |
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| CN104865042A true CN104865042A (en) | 2015-08-26 |
| CN104865042B CN104865042B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510204355.7A Expired - Fee Related CN104865042B (en) | 2015-04-27 | 2015-04-27 | One kind building wind-tunnel can adjust wind and cut open passive simulation wedge device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827743A (en) * | 2019-04-02 | 2019-05-31 | 重庆科技学院 | A kind of multiple spot multistage adjusting flow-disturbing wedge |
| CN109827739A (en) * | 2019-04-02 | 2019-05-31 | 重庆科技学院 | Wind tunnel test is stretched disturbing flow device |
| CN109827744A (en) * | 2019-04-02 | 2019-05-31 | 重庆科技学院 | Wind tunnel test flow-disturbing wedge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08261868A (en) * | 1995-03-20 | 1996-10-11 | Mitsubishi Heavy Ind Ltd | Boundary-layer turbulent flow generation apparatus |
| JP2000266635A (en) * | 1999-03-19 | 2000-09-29 | Hitachi Zosen Corp | Boundary layer turbulence-generating device |
| CN101957255A (en) * | 2010-09-30 | 2011-01-26 | 浙江大学 | Wind tunnel boundary layer simulating wedge and barrier combined device |
| CN204575292U (en) * | 2015-04-27 | 2015-08-19 | 中国中建设计集团有限公司 | The adjustable wind of a kind of building wind-tunnel cuts open passive simulation wedge device |
| CN106153287A (en) * | 2015-04-08 | 2016-11-23 | 大连理工大学 | A kind of device for fixing wind-tunnel wedge |
-
2015
- 2015-04-27 CN CN201510204355.7A patent/CN104865042B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08261868A (en) * | 1995-03-20 | 1996-10-11 | Mitsubishi Heavy Ind Ltd | Boundary-layer turbulent flow generation apparatus |
| JP2000266635A (en) * | 1999-03-19 | 2000-09-29 | Hitachi Zosen Corp | Boundary layer turbulence-generating device |
| CN101957255A (en) * | 2010-09-30 | 2011-01-26 | 浙江大学 | Wind tunnel boundary layer simulating wedge and barrier combined device |
| CN106153287A (en) * | 2015-04-08 | 2016-11-23 | 大连理工大学 | A kind of device for fixing wind-tunnel wedge |
| CN204575292U (en) * | 2015-04-27 | 2015-08-19 | 中国中建设计集团有限公司 | The adjustable wind of a kind of building wind-tunnel cuts open passive simulation wedge device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827743A (en) * | 2019-04-02 | 2019-05-31 | 重庆科技学院 | A kind of multiple spot multistage adjusting flow-disturbing wedge |
| CN109827739A (en) * | 2019-04-02 | 2019-05-31 | 重庆科技学院 | Wind tunnel test is stretched disturbing flow device |
| CN109827744A (en) * | 2019-04-02 | 2019-05-31 | 重庆科技学院 | Wind tunnel test flow-disturbing wedge |
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| CN104865042B (en) | 2017-12-12 |
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Granted publication date: 20171212 |