JPH0499940A - Ground boundary layer wind velocity distribution controller of wind tunnel - Google Patents
Ground boundary layer wind velocity distribution controller of wind tunnelInfo
- Publication number
- JPH0499940A JPH0499940A JP21845290A JP21845290A JPH0499940A JP H0499940 A JPH0499940 A JP H0499940A JP 21845290 A JP21845290 A JP 21845290A JP 21845290 A JP21845290 A JP 21845290A JP H0499940 A JPH0499940 A JP H0499940A
- Authority
- JP
- Japan
- Prior art keywords
- wind
- ground
- wind tunnel
- roll
- shear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 235000019592 roughness Nutrition 0.000 claims description 21
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 6
- 239000000700 radioactive tracer Substances 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 241000270281 Coluber constrictor Species 0.000 description 1
- OQZCSNDVOWYALR-UHFFFAOYSA-N flurochloridone Chemical compound FC(F)(F)C1=CC=CC(N2C(C(Cl)C(CCl)C2)=O)=C1 OQZCSNDVOWYALR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、煙拡散又は気象の模型風洞試験に適用される
地面境界層風速分布制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ground boundary layer wind speed distribution control device applied to smoke diffusion or meteorological model wind tunnel tests.
近年産業の発展に伴って、発電所や化学工場等の煙突か
ら排出される排ガスによる大気汚染を防止することが焦
眉の急の問題となってきた。このような大気汚染対策を
確立するためには、これら汚染排ガスの大気中及び地表
面での拡散状況を把握し、立地条件、規模等に応して最
も有効で経済的な煙突の設置地点、高さ及び排ガスの排
出速度等を決定するデータを得る必要がある。In recent years, with the development of industry, the prevention of air pollution caused by exhaust gases discharged from chimneys of power plants, chemical factories, etc. has become an urgent issue. In order to establish such air pollution countermeasures, it is necessary to understand the diffusion status of these polluted exhaust gases in the atmosphere and on the ground surface, and choose the most effective and economical location for installing chimneys, depending on the location conditions, size, etc. It is necessary to obtain data to determine the height, exhaust gas discharge rate, etc.
そこで模型を用いる風洞試験として、煙突模型からガス
を排出させ、そのガスの拡散状況を定性的に肉眼観察す
るが、又はガスの濃度を定量的に計測する模型試験が実
施されており、これにこの模型試験には、第８図縦断面
図、第９図水平断面図に示すような拡散風洞試験装置が
用いられる。Therefore, as wind tunnel tests using models, gas is discharged from a chimney model and the diffusion status of the gas is qualitatively observed with the naked eye, or model tests are conducted in which the concentration of gas is quantitatively measured. For this model test, a diffusion wind tunnel test device as shown in FIG. 8, a vertical cross-sectional view, and FIG. 9, a horizontal cross-sectional view, is used.
すなわち、第８図、第９図において、風洞測定部１内に
は、トレーサーガス２を所要の排出条件で吐出する煙突
模型３が設置されるとともに、その下流に建家模型４．
地形模型５が配置され、風洞測定部１の上流にある拡大
ダクト６人口の送風機７で発生される風８が、拡大ダク
ト６で導かれて模型の風９として風洞測定部１内を流れ
ており、トレーサーガス２の模型の風９による拡散の状
況は、地形模型５０表面に塗った変色塗料の変色状態で
判断したり、又は計測を必要とする地点でガスを吸引し
その濃度を求めたりして検知している。That is, in FIGS. 8 and 9, a chimney model 3 that discharges tracer gas 2 under required discharge conditions is installed in the wind tunnel measurement section 1, and a building model 4 is installed downstream of the chimney model 3.
A topographical model 5 is arranged, and wind 8 generated by a blower 7 in an enlarged duct 6 located upstream of the wind tunnel measurement section 1 is guided by the enlarged duct 6 and flows through the wind tunnel measurement section 1 as model wind 9. In addition, the state of diffusion of tracer gas 2 by wind 9 on the model can be judged by the discolored state of the discolored paint applied to the surface of the terrain model 50, or the gas can be sucked at the point where measurement is required and its concentration can be determined. It is detected by
しかして、模型の風９は自然の風と同じように模型３，
４．５上に再現されなければならないが、自然の風は、
その風速が地面摩擦のために地面で零で、少し高い所で
少しありより高い所で大きくなる特徴があり、この地面
境界層における風の鉛直方向への風速分布がシャー１０
と呼ばれ、このシャー１０の風洞測定部１内での再現は
、シャー１０が１〜レーサーガス２の拡散状況を決める
ので模型試験で極めて重要とされており、従来、このシ
ャー１０の再現のために、風洞測定部１の上流側の地面
に石ころ２円柱材、角材等で作った地面粗度１２′を置
いて地面摩擦を制御している。Therefore, the wind 9 in the model is the same as the wind in the model 3,
4.5 The natural wind, which must be reproduced above,
The wind speed is zero at the ground due to ground friction, slightly higher at higher places, and larger at higher places, and the wind speed distribution in the vertical direction in this ground boundary layer is 10
The reproduction of this shear 10 in the wind tunnel measurement section 1 is considered to be extremely important in model tests because the shear 10 determines the diffusion status of the gas 1 to the racer gas 2. For this purpose, a ground roughness 12' made of stones, cylinders, square timbers, etc. is placed on the ground upstream of the wind tunnel measurement section 1 to control ground friction.
しかしながら、このような装置においては、再現すべき
シャー１ｏが与えられると、試行錯誤によって地面粗度
１２′の種類、形状等を決めているが、そのため試験準
備に多大の時間を要し、効率が極度に低いという問題が
ある。However, in such a device, given the shear 1o to be reproduced, the type, shape, etc. of the ground roughness 12' is determined by trial and error, which requires a great deal of time for test preparation and reduces efficiency. The problem is that it is extremely low.
本発明は、このような事情に鑑みて提案されたもので、
模型の風の所望風速分布を簡単に再現できる風洞試験の
地面境界層風速分布制御装置を提供することを目的とす
る。The present invention was proposed in view of these circumstances, and
It is an object of the present invention to provide a ground boundary layer wind speed distribution control device for wind tunnel tests that can easily reproduce the desired wind speed distribution of a model wind.
そのために本発明は、風洞測定部内に配設した地上物模
型上に自然風を模型的に再現する風洞試験装置において
、上記風洞測定部の上流地面に、表面に適宜の形状、大
きさの複数個の地面粗度を有する１個又は複数個の回転
ロールを風の流れに交叉し回転制御可能に配置したこと
と、風洞測定部内に配設した地上物模型上に自然風を模
型的に再現する風洞試験装置において、上記風洞測定部
の上流地面に、風の流れに交叉する２個の回転ロールを
回転制御可能に配置するとともに、この両回転ロールの
周りに適宜形状、大きさの複数個の地面粗度を有する無
端ベルトをかけ回したこととを、それぞれ特徴とする。To this end, the present invention provides a wind tunnel test device that reproduces natural wind on a model of ground objects placed in a wind tunnel measurement section, in which a plurality of suitable shapes and sizes are placed on the ground upstream of the wind tunnel measurement section. One or more rotating rolls with different ground roughnesses are arranged to intersect with the wind flow so that their rotation can be controlled, and the natural wind is reproduced on a model of ground objects installed in the wind tunnel measurement section. In the wind tunnel test equipment, two rotating rolls intersecting the wind flow are arranged on the ground upstream of the wind tunnel measurement part so that the rotation can be controlled, and a plurality of rolls of appropriate shapes and sizes are placed around both rotating rolls. They are characterized by the fact that they are wrapped around an endless belt with a ground roughness of .
本発明風洞試験の地面境界層風速分布制御装置の１番目
の発明においては、風洞測定部の上流地面に地面粗度付
き回転ロールを１１固又は複数個設置するにあたり、１
個の場合は地面粗度に形状、大きさの変化を持たせ、複
数個の場合は粗度に形状、大きさ等の変化とともに配列
にも変化を持たせる。また２番目の発明においては、２
個の回転ロール間にかけ回す無端ベル１〜上の地面粗度
に形状、大きさの変化を持たせる。In the first invention of the ground boundary layer wind speed distribution control device for wind tunnel testing of the present invention, when installing 11 or a plurality of rotating rolls with ground roughness on the ground upstream of the wind tunnel measurement part, 1
In the case of a plurality of ground roughnesses, the shape and size of the ground roughness vary; in the case of a plurality of ground roughnesses, the roughness varies in shape, size, etc., and also in its arrangement. In addition, in the second invention, 2
The ground roughness on the endless bell 1 to 1 which is passed between two rotating rolls is made to have a change in shape and size.
しかして、１番目、２番目の発明ともに、回転ロールの
上面の回転方向がその上を流れる模型の風の向きと逆向
きになる逆回転から、風向きが一致する順回転までのシ
ャーの発生状況を予め予備試験をし、模型の風と逆にな
り抵抗となって大きいシャーが発生ずる逆回転の回転数
とシャーの関係、模型の風を加速することになりシャー
は消滅してしまう順回転の回転数とシャーの関係を把握
しておき、必要なシャーに応じた回転方向及び回転数で
回転ロールを駆動し、模型の風の地面境界層におけるシ
ャーを所望のものとする。Therefore, in both the first and second inventions, the shear generation situation ranges from reverse rotation, where the rotation direction of the upper surface of the rotating roll is opposite to the direction of the wind of the model flowing above it, to forward rotation, where the wind direction matches. We conducted a preliminary test on the relationship between the rotation speed and shear for reverse rotation, which is opposite to the model's wind and creates resistance and generates a large shear, and the relationship between forward rotation, which accelerates the model's wind and causes the shear to disappear. The relationship between the number of rotations and the shear is determined, and the rotary roll is driven in the rotational direction and number of rotations according to the required shear to achieve the desired shear in the ground boundary layer of the model's wind.
本発明風洞試験の地面境界層風速分布制御装置の実施例
を図面について説明すると、第１図、第２図は１番目の
発明の第１実施例を示し、第１図は縦断面図、第２図は
第１図のｎ−ｎに沿った水平断面図、第３図は同上にお
ける回転ロールの斜視図、第４図、第５図は第２実施例
を示し、第４図は縦断面図、第５図は第４図のＶ−Ｖに
沿った水平断面図、第６図、第７図は２番目の発明の実
施例を示し、第６図は縦断面図、第７図は第６図の■■
に沿った水平断面図である。An embodiment of the ground boundary layer wind speed distribution control device for wind tunnel testing of the present invention will be explained with reference to the drawings. Figs. 1 and 2 show the first embodiment of the first invention, and Fig. 1 is a longitudinal sectional view, 2 is a horizontal sectional view taken along line nn in FIG. 1, FIG. 3 is a perspective view of the rotating roll in the same as above, FIGS. 5 is a horizontal sectional view taken along the line V-V in FIG. 4, FIGS. 6 and 7 show an embodiment of the second invention, FIG. 6 is a longitudinal sectional view, and FIG. ■■ in Figure 6
FIG.
まず１番目の発明の第１実施例を示す第１図、第２図に
おいて、符号１〜１ｏは第８図。First, in FIGS. 1 and 2 showing a first embodiment of the first invention, reference numerals 1 to 1o refer to FIG.
第９図と同一部材を示す。風洞測定部１の上流地面に、
回転ロール１１が風の流れに直交する向きにかつ回転自
在に設置されるとともに、同回転ロール１１の外周面に
は適当な形状、大きさを有する複数個の地面粗度１２が
配設されており、この地面粗度１２の形状としては、第
３図（Ａ）、 （Ｂ）に示すように、直方体１２Ａ、
角錐体１２Ｂ２円柱体１２Ｃ等が考えられる。また回転
ロール１１の下側面ば外気としゃ断するためのケース１
３で被覆されている。更に回転ロール１１の風洞測定部
１の壁外に突出した一端にはプーリ１４が固着され、同
じく壁外にある駆動モーター１５の軸端のプーリ１６と
の間にベルト１７がかけ回されている。なお駆動モータ
ー１５は図示せざる回転制御装置に接続されている。The same members as in FIG. 9 are shown. On the ground upstream of wind tunnel measurement section 1,
A rotary roll 11 is rotatably installed in a direction perpendicular to the wind flow, and a plurality of ground roughnesses 12 having an appropriate shape and size are arranged on the outer peripheral surface of the rotary roll 11. The shape of this ground roughness 12 is a rectangular parallelepiped 12A, as shown in FIGS. 3(A) and 3(B).
Possible examples include a pyramid 12B2 and a cylindrical body 12C. In addition, the lower surface of the rotating roll 11 is a case 1 for cutting off the outside air.
Covered with 3. Furthermore, a pulley 14 is fixed to one end of the rotating roll 11 that protrudes outside the wall of the wind tunnel measurement section 1, and a belt 17 is passed between it and a pulley 16 at the shaft end of a drive motor 15, which is also outside the wall. . Note that the drive motor 15 is connected to a rotation control device (not shown).
このような装置において、回転ロール１１の回転数を変
化させ逆回転から順回転までのシャー１０の発生状況を
予め予備試験して、シャー１０と回転方向及び回転数の
関係を求めておき、再現すべきシャー１ｏに応じた回転
方向及び回転数で回転ロール１１を駆動し、模型の風９
の地面境界層におけるシャー１゜を所望のものとする。In such a device, the number of rotations of the rotary roll 11 is varied and the occurrence of shear 10 from reverse rotation to forward rotation is preliminarily tested to determine the relationship between the shear 10, rotation direction and rotation speed, and reproduction is possible. The rotating roll 11 is driven in the rotational direction and rotational speed according to the shear 1o to be used, and the wind 9 of the model is
Assume that the shear 1° in the ground boundary layer is desired.
次に第２実施例の第４図、第５図は、上記回転ロール１
１同様のものを２個並べて設ける場合であり、Ｉｌａ、
ｌｌｂは回転ロール、１２ａ、１２ｂは形状の異なる地
面粗度、１４ａ、１４ｂ、１６ａ、１６ｂはプーリ、１
５ａ、１５ｂは図示せざる回転制御装置を有する駆動モ
ーター、１７ａ、１７ｂはベルトであり、作用は第１実
施例とほぼ同様であるが、シャー１０の再現が一層容易
で効率の高い制御ができる。Next, FIGS. 4 and 5 of the second embodiment show the rotating roll 1
1. This is a case where two similar items are installed side by side, and Ila,
llb is a rotating roll; 12a and 12b are ground roughnesses with different shapes; 14a, 14b, 16a, and 16b are pulleys;
5a and 15b are drive motors having a rotation control device (not shown), and 17a and 17b are belts, and the operation is almost the same as in the first embodiment, but the shear 10 can be more easily reproduced and control can be performed with high efficiency. .
更に２番目の発明の第６図、第７図において、風洞測定
部１の上流地面に、２個の回転ロールｌｌａ、ｌｌｂが
並んで風の流れに直交する向きにかつ回転自在に設置さ
れるとともに、両回軸ロールＩｌａ、Ｉｌｂの周りに、
形状の異なる地面粗度１２ａ、１２’ｂを複数個配ダル
て取付けた無端ベルト１８がかけ回されている。また回
転ロールＩｌａ、ｌｌｂの各端部のブー’Ｊ１４ａ、１
４ｂと駆動モーター１５の軸端のプーリ１６との間にベ
ルト１７がかけ回されている。Furthermore, in FIGS. 6 and 7 of the second invention, two rotating rolls lla and llb are installed on the ground upstream of the wind tunnel measurement section 1 in a line perpendicular to the wind flow and rotatable. At the same time, around both rotational rolls Ila and Ilb,
An endless belt 18 having a plurality of ground roughnesses 12a, 12'b of different shapes attached thereto is wound around the belt. In addition, each end of the rotating rolls Ila, llb' J14a, 1
A belt 17 is wound between the drive motor 4b and a pulley 16 at the end of the shaft of the drive motor 15.
このような装置においては、風８と接する地面粗度１２
ａ、１２ｂの面積が広くなり、従って回転ロールＩｌａ
、Ｉｌｂの回転方向及び回転数の制御により地面粗度１
２ａ。In such a device, the ground roughness 12 in contact with the wind 8
The areas of a and 12b become larger, so the rotating roll Ila
, by controlling the rotation direction and rotation speed of Ilb, the ground roughness is 1.
2a.
１２ｂの接触面積範囲が大巾に広がり、それに応じシャ
ー１０の制御範囲も大巾に広くなる。The contact area range of the shear 12b is widened, and the control range of the shear 10 is also widened accordingly.
かくして、１番目の発明、２番目の発明によれば、それ
ぞれ回転ロール１１，１ｌａ１１ｂが順回転のときは模
型の風９を加速するのでシャー１ｏは小さく、逆回転の
ときは模型の風９の抵抗となるのでシャー１０は大きく
なり、従って回転数とシャー１ｏとの関係を予め調査し
ておくと与えられたシャー１０を再現する回転数が決ま
り、容易にシャー１０再現ができるので、従来試験準備
に要した多大の時間を要せず効率の高い地面境界層シャ
ー制御が可能となる。Thus, according to the first invention and the second invention, when the rotating rolls 11 and 1la11b are rotating in the forward direction, they accelerate the wind 9 on the model, so the shear 1o is small, and when they are rotating in the reverse direction, the wind 9 on the model is accelerated. Since it becomes a resistance, the shear 10 becomes large. Therefore, if you investigate the relationship between the rotation speed and the shear 1o in advance, you can determine the rotation speed that reproduces the given shear 10, and you can easily reproduce the shear 10, so the conventional test Highly efficient ground boundary layer shear control is possible without requiring a large amount of time for preparation.
要するに本発明によれば、風洞測定部内に配設した地上
物模型上に自然風を模型的に再現する風洞試験装置にお
いて、上記風洞測定部の上流地面に、表面に適宜の形状
、大きさ４゜
の複数個の地面粗度を有する１個又は複数個の回転ロー
ルを風の流れに交叉し回転制御可能に配置したことと、
風洞測定部内に配設した地上物模型上に自然風を模型的
に再現する風洞試験装置において、上記風洞測定部の上
流地面に、風の流れに交叉する２個の回転ロールを回転
制御可能に配置するとともに、この両回転ロールの周り
に適宜形状、大きさの複数個の地面粗度を有する無端ベ
ルトをかけ回したこととにより、それぞれ模型の風の所
望風速分布を簡単に再現できる風洞試験の地面境界層風
速分布制御装置を得るから、本発明は産業上極めて有益
なものである。In short, according to the present invention, in a wind tunnel test device that reproduces natural wind in a model form on a ground object model placed in a wind tunnel measurement section, a ground surface upstream of the wind tunnel measurement section is provided with an appropriate shape and size 4 on the surface. One or more rotating rolls having a plurality of ground roughnesses of ° are arranged so as to intersect with the wind flow so that their rotation can be controlled;
In a wind tunnel test device that reproduces natural wind on a model of ground objects placed in the wind tunnel measurement section, two rotating rolls that intersect with the wind flow can be controlled to rotate on the ground upstream of the wind tunnel measurement section. At the same time, by running an endless belt around both rotating rolls with multiple ground roughnesses of appropriate shapes and sizes, wind tunnel tests were conducted in which the desired wind speed distribution of each model wind could be easily reproduced. The present invention is industrially extremely useful because it provides a ground boundary layer wind speed distribution control device.
第１図、第２図は本発明風洞試験の地面境界層風速分布
制御装置の１番目の発明の第１実施例を示し、第１図は
縦断面図、第２図は第１図の■−■に沿った水平断面図
、第３図は同上における回転ロールの斜視図、第４図。
第５図は第２実施例を示し、第４図は縦断面図、第５図
は第４図のＶ−Ｖに沿った水平断面図、第６図、第７図
は２番目の発明の実施例を示し、第６図は縦断面図、第
７図は第６図の■−■に沿った水平断面図である。
第８図、第９図は従来の風洞試験装置を示し、第８図は
縦断面図、第９図は第８図の■■に沿った水平断面図で
ある。
■・・・風洞測定部、２・・・トレーサーガス、３・・
・煙突模型、４・・・建家模型、５・・・地形模型、６
・・・拡大ダクト、７・・・送風機、８・・・風、９・
・・模型の風、１０ ・・・シャー、１１．Ｉｌａ。
１ ｌ ｂ ・・・回転ロール、１２．１２ａ、１２ｂ
。
１２Ａ、１２Ｂ、１２Ｃ・・・地面粗度、１３・・・ケ
ース、１４．１４ａ、１４ｂ・・・プーリ、１５．１５
ａ、１５ｂ・−・駆動モーター、１６゜１６ａ、１６ｂ
−プーリ、１７．１７ａ。
１７ｂ・・・ベルト、１８・・・ベルト。
代理人 弁理士 塚 本 正 文1 and 2 show a first embodiment of the first invention of the ground boundary layer wind speed distribution control device for wind tunnel testing of the present invention, FIG. 1 is a longitudinal sectional view, and FIG. 2 is a FIG. 3 is a horizontal sectional view along -■, and FIG. 4 is a perspective view of the rotating roll in the same as above. FIG. 5 shows the second embodiment, FIG. 4 is a longitudinal sectional view, FIG. 5 is a horizontal sectional view taken along the line V-V in FIG. 4, and FIGS. 6 is a longitudinal sectional view, and FIG. 7 is a horizontal sectional view taken along the line 1--2 in FIG. 6. FIGS. 8 and 9 show a conventional wind tunnel test apparatus, with FIG. 8 being a longitudinal sectional view and FIG. 9 being a horizontal sectional view taken along the line ■■ in FIG. ■...Wind tunnel measurement section, 2...Tracer gas, 3...
・Chimney model, 4... Building model, 5... Terrain model, 6
... Expansion duct, 7... Blower, 8... Wind, 9.
...Model wind, 10...Shar, 11. Ila. 1 l b ... rotating roll, 12.12a, 12b
. 12A, 12B, 12C...Ground roughness, 13...Case, 14.14a, 14b...Pulley, 15.15
a, 15b --- Drive motor, 16° 16a, 16b
- Pulley, 17.17a. 17b...Belt, 18...Belt. Agent: Masafumi Tsukamoto, Patent Attorney
Claims (2)
模型的に再現する風洞試験装置において、上記風洞測定
部の上流地面に、表面に適宜の形状、大きさの複数個の
地面粗度を有する１個又は複数個の回転ロールを風の流
れに交叉し回転制御可能に配置したことを特徴とする風
洞試験の地面境界層風速分布制御装置。(1) In a wind tunnel test device that reproduces natural wind on a model of ground objects placed in a wind tunnel measurement section, a plurality of ground surfaces of appropriate shapes and sizes are placed on the ground upstream of the wind tunnel measurement section. 1. A ground boundary layer wind speed distribution control device for wind tunnel testing, characterized in that one or more rotating rolls having roughness are arranged so as to intersect with the wind flow so as to be rotationally controllable.
模型的に再現する風洞試験装置において、上記風洞測定
部の上流地面に、風の流れに交叉する２個の回転ロール
を回転制御可能に配置するとともに、この両回転ロール
の周りに適宜形状、大きさの複数個の地面粗度を有する
無端ベルトをかけ回したことを特徴とする風洞試験の地
面境界層風速分布制御装置。(2) In a wind tunnel test device that reproduces natural wind on a model of ground objects placed in the wind tunnel measurement section, two rotating rolls that intersect with the wind flow are rotated on the ground upstream of the wind tunnel measurement section. A ground boundary layer wind speed distribution control device for wind tunnel testing, characterized in that the ground boundary layer wind speed distribution control device is arranged so as to be controllable, and that an endless belt having a plurality of ground roughnesses of appropriate shapes and sizes is wound around both rotating rolls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21845290A JPH0499940A (en) | 1990-08-20 | 1990-08-20 | Ground boundary layer wind velocity distribution controller of wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21845290A JPH0499940A (en) | 1990-08-20 | 1990-08-20 | Ground boundary layer wind velocity distribution controller of wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0499940A true JPH0499940A (en) | 1992-03-31 |
Family
ID=16720130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21845290A Pending JPH0499940A (en) | 1990-08-20 | 1990-08-20 | Ground boundary layer wind velocity distribution controller of wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0499940A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954425A (en) * | 2014-04-30 | 2014-07-30 | 北京大学 | Hypersonic velocity static wind tunnel nozzle design method and hypersonic velocity static wind tunnel nozzle transition position determining method |
| CN108303233A (en) * | 2017-08-08 | 2018-07-20 | 北京空天技术研究所 | A high-speed aircraft wind tunnel test device and method for device are twisted in a kind of band pressure turn |
| CN108303229A (en) * | 2017-08-08 | 2018-07-20 | 北京空天技术研究所 | A high-speed aircraft inlet characteristic apparatus for evaluating and method for device is twisted in a kind of band pressure turn |
| CN109737016A (en) * | 2019-01-30 | 2019-05-10 | 沈阳航空航天大学 | A kind of mechanical efficiency measurement method of wind energy conversion system aerodynamic experiment device |
-
1990
- 1990-08-20 JP JP21845290A patent/JPH0499940A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954425A (en) * | 2014-04-30 | 2014-07-30 | 北京大学 | Hypersonic velocity static wind tunnel nozzle design method and hypersonic velocity static wind tunnel nozzle transition position determining method |
| CN108303233A (en) * | 2017-08-08 | 2018-07-20 | 北京空天技术研究所 | A high-speed aircraft wind tunnel test device and method for device are twisted in a kind of band pressure turn |
| CN108303229A (en) * | 2017-08-08 | 2018-07-20 | 北京空天技术研究所 | A high-speed aircraft inlet characteristic apparatus for evaluating and method for device is twisted in a kind of band pressure turn |
| CN108303229B (en) * | 2017-08-08 | 2019-06-07 | 北京空天技术研究所 | A high-speed aircraft inlet characteristic assessment device and method for device is twisted in a kind of band pressure turn |
| CN109737016A (en) * | 2019-01-30 | 2019-05-10 | 沈阳航空航天大学 | A kind of mechanical efficiency measurement method of wind energy conversion system aerodynamic experiment device |
| CN109737016B (en) * | 2019-01-30 | 2020-04-07 | 沈阳航空航天大学 | Mechanical efficiency measuring method of wind turbine aerodynamic performance experimental device |
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