JPH08114526A - Wind tunnel test visualizing method and device - Google Patents
Wind tunnel test visualizing method and deviceInfo
- Publication number
- JPH08114526A JPH08114526A JP24917594A JP24917594A JPH08114526A JP H08114526 A JPH08114526 A JP H08114526A JP 24917594 A JP24917594 A JP 24917594A JP 24917594 A JP24917594 A JP 24917594A JP H08114526 A JPH08114526 A JP H08114526A
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- image
- model
- image signal
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- wind
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は風洞実験において、地形
等の模型と気流とを正確に観測することのできる風洞実
験可視化方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind tunnel experiment visualization method and apparatus capable of accurately observing a model such as topography and an air flow in a wind tunnel experiment.
【０００２】[0002]
【従来の技術】図２は従来の風洞実験可視化装置の斜視
図である。図において１は風洞、２は地形模型、３は模
型２に取付けられた多数の糸、４は風、５はビデオ・カ
メラである。従来の風洞実験では、気流の可視化撮影を
行う場合、図に示すように、風洞１内に設置された地形
模型２の表面に、多数の糸３を取り付け、風洞１内に風
４を流し、この風によるこれら糸３の流れ方向から、気
流の方向を観測し、これらの糸３と地形模型２を同時
に、ビデオ・カメラ５で撮影していた。2. Description of the Related Art FIG. 2 is a perspective view of a conventional wind tunnel experiment visualization device. In the figure, 1 is a wind tunnel, 2 is a terrain model, 3 is a large number of threads attached to the model 2, 4 is wind, and 5 is a video camera. In the conventional wind tunnel experiment, when visualizing the air flow, as shown in the figure, a large number of threads 3 are attached to the surface of the terrain model 2 installed in the wind tunnel 1, and the wind 4 is blown in the wind tunnel 1. The direction of the air flow was observed from the flow direction of these threads 3 caused by this wind, and these threads 3 and the terrain model 2 were simultaneously photographed by the video camera 5.
【０００３】[0003]
【発明が解決しようとする課題】このような従来の風洞
実験による観測においては、ビデオ・カメラ５で撮影す
る場合、糸３と地形模型２が、重なって撮影されるため
に、糸３と地形模型２を区別することが困難な場合があ
り、糸３の画像を鮮明に写すことも困難であった。その
ため、風向分布も正確に把握することが困難な場合があ
った。In the observation by the conventional wind tunnel experiment as described above, when the image is taken by the video camera 5, the yarn 3 and the terrain model 2 are photographed in an overlapping manner, so that the yarn 3 and the terrain are photographed. It was sometimes difficult to distinguish the model 2, and it was also difficult to clearly capture the image of the thread 3. Therefore, it may be difficult to accurately grasp the wind direction distribution.
【０００４】また、最近では、糸３に螢光染料を塗布し
て、暗室で撮影する技術も開発されているが、この場
合、地形模型２は撮影出来ず、糸３のみが撮影されるた
めに、地形模型２上の風向分布が分かりにくい問題点が
あった。Recently, a technique of coating a fluorescent dye on the thread 3 and photographing it in a dark room has been developed, but in this case, the topographic model 2 cannot be photographed and only the thread 3 is photographed. In addition, there was a problem that the wind direction distribution on the terrain model 2 was difficult to understand.
【０００５】[0005]
【課題を解決するための手段】本発明はこのような課題
を解決するために、風洞内の実験模型、必要に応じてそ
の周囲にも螢光染料を塗布した糸を取付け、暗室状態と
照明状態とでこの模型及び糸をビデオ・カメラで撮影
し、得られた両画像信号を加算して加算画像を得て実験
模型の風向分布を観測する方法を提供し、更に、この方
法を実施するためのビデオ・カメラ、照明装置、画像解
析装置を備えた可視化装置も提供する。In order to solve such a problem, the present invention attaches an experimental model in a wind tunnel and, if necessary, a thread coated with a fluorescent dye also around the model, in a dark room condition and lighting. We provide a method of observing the wind direction distribution of the experimental model by shooting the model and the yarn with a video camera in the state and adding both obtained image signals to obtain an added image, and further carry out this method. We also provide a visualization device equipped with a video camera, lighting device, and image analysis device.
【０００６】即ち、（１）方法の発明として、暗室状態
の風洞内に設置された実験模型に螢光染料を塗布した複
数本の糸を取付けておき、風洞内に風を流し、ビデオ・
カメラで同実験模型を撮影し、画像信号を得ておき、同
実験模型に光を照射してビデオ・カメラで同模型を撮影
した画像信号と前記暗室状態での画像信号とを加算して
加算画像信号を得て前記実験模型の風向分布を観測する
ことを特徴とする風洞実験可視化方法を提供する。That is, as the invention of (1) method, a plurality of threads coated with a fluorescent dye are attached to an experimental model installed in a wind tunnel in a dark room, and a wind is blown in the wind tunnel to perform a video
The experimental model is photographed by the camera, an image signal is obtained in advance, the experimental model is irradiated with light, and the image signal of the model photographed by the video camera and the image signal in the dark room state are added and added. There is provided a wind tunnel experiment visualization method characterized by obtaining an image signal and observing the wind direction distribution of the experimental model.
【０００７】又、（２）装置の発明として、暗室状態の
風洞内に設置された実験模型と、同実験模型に取付けら
れ、螢光染料を塗布した複数本の糸と、前記暗室状態の
風洞内に設置された照明装置と、前記実験模型及び糸を
暗室状態及び前記照明装置により照らし出された状態と
をそれぞれ撮影するビデオ・カメラと、同ビデオ・カメ
ラから出力される前記暗室状態での画像信号および前記
照明装置により照らされた状態での画像信号をそれぞれ
入力し、両画像信号を加算した画像として出力する画像
解析装置とを備えてなることを特徴とする風洞実験可視
化装置も提供する。Further, (2) the invention of the device, an experimental model installed in a wind tunnel in a dark room, a plurality of threads attached to the experimental model and coated with a fluorescent dye, and the wind tunnel in the dark room. A lighting device installed inside, a video camera for photographing the experimental model and the thread in a dark room state and a state illuminated by the lighting device, respectively, and a video camera in the dark room state output from the video camera. There is also provided a wind tunnel experiment visualization device characterized by comprising an image analysis device for inputting an image signal and an image signal in a state illuminated by the illumination device, and outputting as an image obtained by adding both image signals. .
【０００８】[0008]
【作用】本発明はこのような手段により、その（１）の
発明においては、まず、風洞内に風を流し、暗室状態に
おいて、ビデオ・カメラで実験模型及び糸を撮影する。
この撮影された画像信号には、糸には螢光染料が塗布さ
れているので糸の流れの鮮明な画像が得られる。この得
られた画像信号は、まず記憶装置、等に保持しておく。
次に、実験模型に光を照射した状態で同じくビデオ・カ
メラで模型を撮影する。この光を照射した状態での画像
信号には実験模型が鮮明に得られるので、この画像信号
に前述の一時保持していた画像信号を加算すると、糸の
画像と実験模型の画像が加算され、模型上の糸の流れを
模型と区分して鮮明に画像として得ることができ、気流
分布を正確に観測することができる。According to the present invention, in the invention of (1), the wind is blown in the wind tunnel, and the experimental model and the yarn are photographed by the video camera in the dark room.
Since a fluorescent dye is applied to the yarn in the photographed image signal, a clear image of the yarn flow can be obtained. The obtained image signal is first stored in a storage device or the like.
Next, the model is photographed with the same video camera while the model is illuminated with light. Since the experimental model can be clearly obtained in the image signal in the state of irradiating this light, if the image signal temporarily held as described above is added to this image signal, the image of the yarn and the image of the experimental model are added, The flow of the yarn on the model can be clearly obtained as an image by distinguishing it from the model, and the air flow distribution can be accurately observed.
【０００９】（２）の発明においては、まず風洞内に風
を流し、ビデオ・カメラで実験模型及び糸を撮影する。
この撮影された画像信号には、前述のように糸の鮮明な
画像が得られ、これを画像解析装置の記憶装置に一時記
憶させておく。次に、照明装置を点灯し、実験模型に光
を照射し、同じくビデオ・カメラでこの模型を撮影し、
画像解析装置に入力する。この画像信号には前述のよう
に実験模型の鮮明な画像が得られる。画像解析装置では
先に記憶装置に記憶していた糸の画像信号に、この照明
した状態で得られた実験模型の画像信号を合成し、加算
して実験模型と糸の両者を鮮明に区分して鮮明な加算画
像を出力し、そのため気流分布を正確に観測することが
できる。In the invention of (2), first, the wind is blown in the wind tunnel, and the experimental model and the yarn are photographed by the video camera.
As described above, a clear image of the yarn is obtained from the photographed image signal, and this is temporarily stored in the storage device of the image analysis device. Next, turn on the lighting device, illuminate the experimental model, shoot the model with the same video camera,
Input to the image analysis device. A clear image of the experimental model is obtained from this image signal as described above. In the image analysis device, the image signal of the yarn previously stored in the storage device is combined with the image signal of the experimental model obtained in this illuminated state, and added to clearly distinguish both the experimental model and the yarn. A clear and clear addition image is output, so that the air flow distribution can be accurately observed.
【００１０】更に、風向および風向変動を画像解析装置
によって、数量化することも可能である。また、糸の画
像信号を、画像解析装置で強調することによって、模型
上の糸の方向を鮮明にし、気流分布を容易に観測するこ
とも可能となる。Furthermore, it is possible to quantify the wind direction and the change in the wind direction with an image analysis device. Also, by emphasizing the image signal of the yarn with the image analysis device, the direction of the yarn on the model can be made clear and the air flow distribution can be easily observed.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基づいて具体
的に説明する。図１は本発明の一実施例に係る風洞実験
可視化装置の斜視図である。図において、１は風洞、２
は地形模型、１４は模型２及びその近辺に取付けられ、
螢光染料を塗布した多数の糸、４は風、５はビデオ・カ
メラである。６は照明ランプ、７は糸１４の状態をビデ
オ・カメラで撮影した画像信号、８は同じくビデオ・カ
メラ５で撮影した地形模型２の画像信号、９はこれら信
号７，８を取込み解析する画像解析装置、１０は画像信
号７と８とを加算した加算画像信号で表示装置１１に表
示されるものである。１２は画像解析装置９内の記憶装
置、１３は同じく画像解析装置９内の解析部である。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a wind tunnel experiment visualization device according to an embodiment of the present invention. In the figure, 1 is a wind tunnel, 2
Is a terrain model, 14 is attached to the model 2 and its vicinity,
Numerous threads coated with fluorescent dye, 4 wind, 5 video camera. 6 is an illumination lamp, 7 is an image signal of the state of the thread 14 taken by a video camera, 8 is an image signal of the terrain model 2 also taken by the video camera 5, and 9 is an image for capturing and analyzing these signals 7 and 8. The analysis device 10 is an addition image signal obtained by adding the image signals 7 and 8 and is displayed on the display device 11. Reference numeral 12 is a storage device in the image analysis apparatus 9, and 13 is an analysis unit in the image analysis apparatus 9.
【００１２】このような構成の実施例において、まず、
暗室状態の風洞１内に設置された地形模型２上に螢光染
料を塗布した多数の糸１４を取り付け、風４を流す。こ
の糸１４は模型１４に直接取付けても良く、又模型２の
近辺、周囲にその状況に応じて取付ける。風４を受けた
多数の糸は気流の方向に流され、暗室状態においてこれ
らの糸１４をビデオ・カメラ５で撮影する。撮影された
これら糸１４の画像信号７は画像解析装置９に取込ま
れ、内部の記憶装置１２に一時記録される。In an embodiment having such a structure, first,
A large number of threads 14 coated with a fluorescent dye are attached to the terrain model 2 installed in the wind tunnel 1 in a dark room, and the wind 4 is blown. The thread 14 may be directly attached to the model 14, or may be attached near or around the model 2 depending on the situation. A large number of yarns that have received the wind 4 are made to flow in the direction of the air flow, and these yarns 14 are photographed by the video camera 5 in a dark room state. The image signals 7 of these yarns 14 that have been photographed are taken into the image analysis device 9 and temporarily recorded in the internal storage device 12.
【００１３】次に、照明ランプ６を点灯し、地形模型２
を照明し、地形模型２をビデオ・カメラ５で撮影する。
撮影された地形模型２の画像信号８は画像解析装置９に
取込まれ、解析部１３において先に記憶装置１２に記憶
させておいた糸１４の画像信号７と加算して糸３の状態
と地形模型２との加算画像１０を出力し、表示装置１１
に表示する。Next, the illumination lamp 6 is turned on, and the terrain model 2
And the topographic model 2 is photographed by the video camera 5.
The image signal 8 of the photographed topographic model 2 is taken in by the image analysis device 9, and is added to the image signal 7 of the yarn 14 previously stored in the storage device 12 in the analysis unit 13 to obtain the state of the yarn 3. The added image 10 with the terrain model 2 is output, and the display device 11
To be displayed.
【００１４】なお、画像解析装置９は本実施例では記憶
装置１２と解析部１３とからなり、画像信号７，８は解
析部１３に入力され、画像信号７を解析部１３からの指
令で記憶装置１２へ記憶するようにしているが、画像信
号７を直接記憶装置１２へ入力するようにしても良い。
又、この記憶装置１２は画像解析装置９の外部の記憶装
置としても良いことはもちろんである。In this embodiment, the image analysis device 9 comprises a storage device 12 and an analysis unit 13. The image signals 7 and 8 are input to the analysis unit 13 and the image signal 7 is stored by a command from the analysis unit 13. Although the image signal 7 is stored in the device 12, the image signal 7 may be directly input to the storage device 12.
Of course, the storage device 12 may be a storage device external to the image analysis device 9.
【００１５】又、この画像解析装置９は両画像信号７，
８を加算する機能の他に、表示装置１１にこれらの画像
信号７，８をそれぞれ独立に出力して表示したり、両画
像信号のいずれかを強調したり、更に風向分布を数量化
したりする機能も有するものである。Further, the image analysis device 9 uses the two image signals 7,
In addition to the function of adding 8, the image signals 7 and 8 are independently output and displayed on the display device 11, one of both image signals is emphasized, and the wind direction distribution is further quantified. It also has a function.
【００１６】前述の暗室状態で糸１４のみを撮影する場
合、紫外線ランプを用いて紫外線を照射すれば、螢光染
料がより鮮明になるので、さらに鮮明な糸１３の動きを
撮影することが可能である。又、照明ランプ６の代り
に、風洞に外部の光、例えば太陽光を取込む開閉部を設
けておき、外部から光線を取込むようにしても良い。When only the yarn 14 is photographed in the dark room, the fluorescent dye becomes clearer by irradiating it with ultraviolet rays by using an ultraviolet lamp, so that a clearer movement of the yarn 13 can be photographed. Is. Further, instead of the illumination lamp 6, an opening / closing portion for taking in external light, for example, sunlight may be provided in the wind tunnel to take in light rays from the outside.
【００１７】このように、本実施例によれば、まず、暗
室状態で糸１４の鮮明な画像を撮影し、次に明るい状態
で地形模型２を撮影したのち、両者の画像信号７，８
を、画像解析装置９で加算することによって、糸１４と
地形模型２の両者を同時に、鮮明な画像で出力すること
が出来る。As described above, according to the present embodiment, first, a clear image of the thread 14 is taken in a dark room state, and then the topographic model 2 is taken in a bright state.
Is added by the image analysis device 9, both the yarn 14 and the topographic model 2 can be simultaneously output as a clear image.
【００１８】又、糸１４の画像信号７は、独立して記録
することが可能であるので、鮮明な画像を得るほかに、
風向および風向変動を画像解析装置９によって、数量化
することも出来る。Since the image signal 7 of the yarn 14 can be recorded independently, a clear image can be obtained in addition to the above.
The wind direction and the change in the wind direction can be quantified by the image analysis device 9.
【００１９】更に、また、糸１４の画像信号７を、画像
解析装置９で強調することによって、地形模型２上の糸
１４の方向を鮮明にし、気流分布を容易に観測すること
が可能となる。Furthermore, by emphasizing the image signal 7 of the yarn 14 by the image analysis device 9, the direction of the yarn 14 on the terrain model 2 can be made clear and the air flow distribution can be easily observed. .
【００２０】[0020]
【発明の効果】以上、具体的に説明したように、本発明
においては、風洞内の実験模型に螢光染料を塗布した糸
を取付け、暗室状態と照明状態とでこの模型及び糸をビ
デオ・カメラで撮影し、得られた画像信号を加算して加
算画像信号を得て実験模型の風向分布を観測する方法と
し、更に、この方法を実施するためのビデオ・カメラ、
照明装置、画像解析装置を備えた可視化装置を提供する
ので、従来のように実験模型と糸との画像が重なり、糸
の画像がわかりにくいようなことが解消することがで
き、模型と糸の画像を鮮明に表示でき、又、両者の画像
を必要に応じて強調することもできるので、正確に風向
分布を観測することができるものである。As described above in detail, in the present invention, a thread coated with a fluorescent dye is attached to an experimental model in a wind tunnel, and the model and the thread are video-operated in a dark room condition and a lighting condition. A method of observing the wind direction distribution of the experimental model by taking an image with a camera and adding the obtained image signals to obtain the added image signal, and a video camera for implementing this method,
By providing a visualization device equipped with a lighting device and an image analysis device, it is possible to eliminate the problem that the images of the experimental model and the thread overlap and the image of the thread is difficult to understand, as in the conventional method. Since the images can be displayed clearly and both images can be emphasized as required, the wind direction distribution can be accurately observed.
【図１】本発明の一実施例に係る風洞実験可視化装置の
斜視図である。FIG. 1 is a perspective view of a wind tunnel experiment visualization device according to an embodiment of the present invention.
【図２】従来の風洞実験可視化装置の斜視図である。FIG. 2 is a perspective view of a conventional wind tunnel experiment visualization device.
１ 風洞 ２ 地形模型 ４ 風 ５ ビデオ・カメラ ６ 照明ランプ ７ 画像信号 ８ 画像信号 ９ 画像解析装置 １０ 加算画像信号 １１ 表示装置 １２ 記憶装置 １３ 解析部 １４ 糸 1 Wind Tunnel 2 Topographic Model 4 Wind 5 Video Camera 6 Lighting Lamp 7 Image Signal 8 Image Signal 9 Image Analysis Device 10 Addition Image Signal 11 Display Device 12 Storage Device 13 Analysis Unit 14 Thread
Claims (2)
に螢光染料を塗布した複数本の糸を取付けておき、風洞
内に風を流し、ビデオ・カメラで同実験模型を撮影し、
画像信号を得ておき、同実験模型に光を照射してビデオ
・カメラで同模型を撮影した画像信号と前記暗室状態で
の画像信号とを加算して加算画像信号を得て前記実験模
型の風向分布を観測することを特徴とする風洞実験可視
化方法。1. A plurality of threads coated with a fluorescent dye are attached to an experimental model installed in a wind tunnel in a dark room, a wind is blown in the wind tunnel, and the experimental model is photographed by a video camera,
Obtaining an image signal, irradiating the experimental model with light, and adding the image signal obtained by photographing the model with a video camera and the image signal in the dark room state to obtain an added image signal and A wind tunnel experiment visualization method characterized by observing the wind direction distribution.
と、同実験模型に取付けられ、螢光染料を塗布した複数
本の糸と、前記暗室状態の風洞内に設置された照明装置
と、前記実験模型及び糸を暗室状態及び前記照明装置に
より照らし出された状態とをそれぞれ撮影するビデオ・
カメラと、同ビデオ・カメラから出力される前記暗室状
態での画像信号および前記照明装置により照らされた状
態での画像信号をそれぞれ入力し、両画像信号を加算し
た画像として出力する画像解析装置とを備えてなること
を特徴とする風洞実験可視化装置。2. An experimental model installed in a wind tunnel in a dark room, a plurality of threads attached to the experimental model and coated with a fluorescent dye, and an illumination device installed in the wind tunnel in the dark room. , A video recording the experimental model and the thread in a dark room state and a state illuminated by the lighting device, respectively.
A camera, and an image analysis device that inputs the image signal in the dark room state and the image signal in the state illuminated by the illumination device, which are output from the video camera, and outputs as an image in which both image signals are added, An apparatus for visualizing a wind tunnel experiment, which comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24917594A JP3145581B2 (en) | 1994-10-14 | 1994-10-14 | Wind tunnel experiment visualization method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24917594A JP3145581B2 (en) | 1994-10-14 | 1994-10-14 | Wind tunnel experiment visualization method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08114526A true JPH08114526A (en) | 1996-05-07 |
| JP3145581B2 JP3145581B2 (en) | 2001-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24917594A Expired - Fee Related JP3145581B2 (en) | 1994-10-14 | 1994-10-14 | Wind tunnel experiment visualization method and device |
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| JP (1) | JP3145581B2 (en) |
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| DE102005017515A1 (en) * | 2005-04-15 | 2006-10-19 | Airbus Deutschland Gmbh | Wind tunnel reading analyzing device, for determining aerodynamic characteristics of aircraft, has processor performing automatic identification of flow unit in recorded image during wind tunnel reading, where image of flow unit is recorded |
| KR100885374B1 (en) * | 2008-03-14 | 2009-02-25 | 엘에스엠트론 주식회사 | Flow visualization device of turbo chillers |
| CN101813553A (en) * | 2010-04-13 | 2010-08-25 | 上海理工大学 | Visual testing device and method for air distribution |
| US7902492B2 (en) | 2008-04-01 | 2011-03-08 | Murata Machinery, Ltd. | Measuring unit for air flow |
| CN104482484A (en) * | 2014-12-11 | 2015-04-01 | 中国航天空气动力技术研究院 | Illumination device inside wind tunnel test section |
| CN105784312A (en) * | 2014-12-26 | 2016-07-20 | 长园高能电气股份有限公司 | Composite insulator wind-resistant testing method and composite insulator wind-resistant testing device |
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| CN109238623A (en) * | 2018-11-13 | 2019-01-18 | 西北工业大学 | A kind of silk thread mounting structure and its installation method for wind tunnel test part |
| CN109357834A (en) * | 2018-11-13 | 2019-02-19 | 西北工业大学 | A kind of fluorescence silk thread mounting structure based on sleeve |
| CN112067244A (en) * | 2020-09-07 | 2020-12-11 | 中国航空工业集团公司沈阳空气动力研究所 | Formula and use method of dual-component fluorescent oil film suitable for subsonic velocity temporary wind tunnel |
| CN114894428A (en) * | 2022-04-15 | 2022-08-12 | 西华大学 | Fluid flow measuring method based on deflection angle of fluorescent microwire |
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1994
- 1994-10-14 JP JP24917594A patent/JP3145581B2/en not_active Expired - Fee Related
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| DE102005017515A1 (en) * | 2005-04-15 | 2006-10-19 | Airbus Deutschland Gmbh | Wind tunnel reading analyzing device, for determining aerodynamic characteristics of aircraft, has processor performing automatic identification of flow unit in recorded image during wind tunnel reading, where image of flow unit is recorded |
| US7942049B2 (en) | 2005-04-15 | 2011-05-17 | Airbus Deutschland Gmbh | Device for automatic evaluation and control of wind tunnel measurements |
| KR100885374B1 (en) * | 2008-03-14 | 2009-02-25 | 엘에스엠트론 주식회사 | Flow visualization device of turbo chillers |
| US7902492B2 (en) | 2008-04-01 | 2011-03-08 | Murata Machinery, Ltd. | Measuring unit for air flow |
| CN101813553A (en) * | 2010-04-13 | 2010-08-25 | 上海理工大学 | Visual testing device and method for air distribution |
| CN104482484A (en) * | 2014-12-11 | 2015-04-01 | 中国航天空气动力技术研究院 | Illumination device inside wind tunnel test section |
| CN105784312A (en) * | 2014-12-26 | 2016-07-20 | 长园高能电气股份有限公司 | Composite insulator wind-resistant testing method and composite insulator wind-resistant testing device |
| CN108225718A (en) * | 2017-12-28 | 2018-06-29 | 中国航天空气动力技术研究院 | A kind of fluorescence oil film thickness scaling method based on temperature effect |
| CN109238623A (en) * | 2018-11-13 | 2019-01-18 | 西北工业大学 | A kind of silk thread mounting structure and its installation method for wind tunnel test part |
| CN109357834A (en) * | 2018-11-13 | 2019-02-19 | 西北工业大学 | A kind of fluorescence silk thread mounting structure based on sleeve |
| CN112067244A (en) * | 2020-09-07 | 2020-12-11 | 中国航空工业集团公司沈阳空气动力研究所 | Formula and use method of dual-component fluorescent oil film suitable for subsonic velocity temporary wind tunnel |
| CN112067244B (en) * | 2020-09-07 | 2023-09-05 | 中国航空工业集团公司沈阳空气动力研究所 | Bi-component fluorescent oil film formula suitable for subsonic temporary flushing wind tunnel and using method |
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| Publication number | Publication date |
|---|---|
| JP3145581B2 (en) | 2001-03-12 |
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