CN104849018A - Three-component oil for colorful oil flow test of low-speed wind tunnel - Google Patents
Three-component oil for colorful oil flow test of low-speed wind tunnel Download PDFInfo
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- CN104849018A CN104849018A CN201510227730.XA CN201510227730A CN104849018A CN 104849018 A CN104849018 A CN 104849018A CN 201510227730 A CN201510227730 A CN 201510227730A CN 104849018 A CN104849018 A CN 104849018A
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Abstract
The invention provides three-component oil for the colorful oil flow test of a low-speed wind tunnel. The mass volume ratio of colorful indicator to carrier oil to diluent of the three-component oil is 20g:31ml:29ml, wherein the colorful indicator is composed of green fluorescent powder FT-711, deep blue fluorescent powder FT-712, orange fluorescent powder FT-714, cerise fluorescent powder FT-715 or sky blue fluorescent powder FT-719, the carrier oil is methylsilicone oil of which the kinematic viscosity is 1000cs, and the diluent is aviation kerosene. The oil of the invention is applicable to oil flow display tests of 20m/s to 60m/s conventional low-speed wind tunnels. The component matching of the oil of the invention is simple, convenient and fast.
Description
Technical field
The present invention relates to a kind of three components oil plant for color oil flow test of low-speed wind tunnel.
Background technology
In wind tunnel test, the test of oil stream is test method air-flow being shown by means of physical means around some feature of model flow with the form of picture.By observing oily stream picture, and carry out topological analysis, in depth can understand essence and the mechanism of flow phenomenon, determine position that air-flow adheres on model, occur shock wave and the position of vortex and the position of burbling and the mode be separated and feature, for pragmatize experimental data provides foundation, contribute to setting up, improving and develop new Aerodynamics.
During the test of oil stream, at the coating that the coated one deck of model surface is special, the oil plant normally containing trickle trace particle, when carrying out wind tunnel test, the oil plant film that the shear stress that model surface air stream on accompany surface is formed promotes model surface does viscose movements, forms oily flow pattern.By the observation analysis to oily flow pattern, the flow state on Confirming model.
Oil flow pattern is actually oil plant film and makes viscose movements under air propels, and at the flowing trace collection of illustrative plates that model surface is formed, on oily flow pattern, principal character structure is singular point, and namely friction stree is the point of zero.Assemble or the different modes dispersed at singular point place according to friction line, be divided into dissimilar singular point.Common are saddle point, node and spiral points three kinds of singular points in oil flow pattern.
The object of oil-flow visualization adopts more reasonably formula of oil and experiment process, obtains oily flow pattern more clearly.
Summary of the invention
For above demand, the invention discloses a kind of three components oil plant for color oil flow test of low-speed wind tunnel.
The technology used in the present invention is as follows: a kind of three components oil plant for color oil flow test of low-speed wind tunnel, formula by quality and volume ratio as follows, colored indicator: carrier oil plant: thinning agent=20 gram: 31 milliliters: 29 milliliters.
The present invention also has following technical characteristic:
1, colored indicator as above is green emitting phosphor FT-711, mazarine fluorescent powder FT-712, Chinese red fluorescent powder FT-714, large red fluorescent powder FT-715 or sky blue fluorescent powder FT-719.
2, the methyl-silicone oil of carrier oil plant as above to be kinematic viscosity be 1000cs.
3, thinning agent as above is aviation kerosene.
4, as above this oil plant is applicable to the oil-flow visualization test that wind speed range is the conventional low-speed wind tunnel of 20m/s-60m/s.
Advantage of the present invention is:
1. colored indicator is daylight fluorescent powder, and it is bright, bright-coloured, and contrast is strong, without the need to spraying background color to model.
2. same formula is applicable to the oil-flow visualization test of the conventional low-speed wind tunnel of 20m/s-60m/s.
3. proportioning is simple, convenient, fast.
Embodiment
Embodiment 1
For a three components oil plant for color oil flow test of low-speed wind tunnel, formula by quality and volume ratio as follows, colored indicator: carrier oil plant: thinning agent=20 gram: 31 milliliters: 29 milliliters.
Concrete implementation step is:
Step one: the raw material dosage estimating the test of oil stream according to the area of test model and formula of oil;
Step 2: take colored indicator with electronic scale, precision need higher than 1%, and colored indicator is green emitting phosphor FT-711, mazarine fluorescent powder FT-712, Chinese red fluorescent powder FT-714, large red fluorescent powder FT-715 or sky blue fluorescent powder FT-719;
Step 3: measure with measuring cup the methyl-silicone oil that kinematic viscosity is 1000cs, precision need higher than 1%;
Step 4: measure aviation kerosene with measuring cup, precision need higher than 1%;
Step 5: the colored indicator claiming by proportioning, measure and carrier oil plant are placed in suitable container;
Step 6: stir color by stirring rod even;
Step 7: leave standstill about 10 minutes before the test;
Step 8: if the oil plant time of repose prepared is long, repeats step 6, step 7; With anhydrous alcohol wiping model surface, complete after volatilization until anhydrous alcohol, with the oil plant of standing about 10 minutes is quick, the even scrubbing brush of oil painting scrubbing brush on model surface;
Step 9: the rear wind-tunnel that starts rapidly of brushing, to the test wind, carries out the test of oil stream to model, takes a picture until model surface flow pattern fixes rear blowing-out substantially, obtain oil stream flow pattern.
Claims (5)
1., for a three components oil plant for color oil flow test of low-speed wind tunnel, it is characterized in that, formula by quality and volume ratio as follows: colored indicator: carrier oil plant: thinning agent=20 gram: 31 milliliters: 29 milliliters.
2. a kind of three components oil plant for color oil flow test of low-speed wind tunnel according to claim 1, it is characterized in that, described colored indicator is green emitting phosphor FT-711, mazarine fluorescent powder FT-712, Chinese red fluorescent powder FT-714, large red fluorescent powder FT-715 or sky blue fluorescent powder FT-719.
3. a kind of three components oil plant for color oil flow test of low-speed wind tunnel according to claim 1, is characterized in that, the methyl-silicone oil of described carrier oil plant to be kinematic viscosity be 1000cs.
4. a kind of three components oil plant for color oil flow test of low-speed wind tunnel according to claim 1, it is characterized in that, described thinning agent is aviation kerosene.
5. a kind of three components oil plant for color oil flow test of low-speed wind tunnel according to claim 1, is characterized in that, is applicable to the oil-flow visualization test that wind speed range is the conventional low-speed wind tunnel of 20m/s-60m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227730.XA CN104849018A (en) | 2015-04-29 | 2015-04-29 | Three-component oil for colorful oil flow test of low-speed wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510227730.XA CN104849018A (en) | 2015-04-29 | 2015-04-29 | Three-component oil for colorful oil flow test of low-speed wind tunnel |
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| CN104849018A true CN104849018A (en) | 2015-08-19 |
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| CN201510227730.XA Pending CN104849018A (en) | 2015-04-29 | 2015-04-29 | Three-component oil for colorful oil flow test of low-speed wind tunnel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840576A (en) * | 2017-03-10 | 2017-06-13 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel oil stream test method |
| CN106908214A (en) * | 2017-03-10 | 2017-06-30 | 中国空气动力研究与发展中心高速空气动力研究所 | The collocation method and experiment finish of high-speed wind tunnel oil stream experiment finish |
| CN110243568A (en) * | 2019-08-05 | 2019-09-17 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of low-speed wind tunnel sublimed method test method based on colored indicator |
| CN110987356A (en) * | 2019-12-06 | 2020-04-10 | 中国航空工业集团公司沈阳空气动力研究所 | Formula and using method of colored oil flow suitable for subsonic velocity temporary flushing wind tunnel |
| 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 |
| CN112432755A (en) * | 2020-10-23 | 2021-03-02 | 中国空气动力研究与发展中心高速空气动力研究所 | Wide-speed-range color fluorescent oil flow reagent and viscosity adjusting method thereof |
| CN115371950A (en) * | 2022-10-21 | 2022-11-22 | 中国航空工业集团公司沈阳空气动力研究所 | Fluorescent color oil flow spectrum three-dimensional reconstruction formula and method suitable for inner pipeline |
| CN116183157A (en) * | 2023-04-25 | 2023-05-30 | 太原理工大学 | Intelligent wind tunnel experimental device |
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| CN102564723A (en) * | 2011-12-14 | 2012-07-11 | 中国航空工业集团公司沈阳空气动力研究所 | Formula of oil for color oil flow test of low-speed wind tunnel |
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| CN102564723A (en) * | 2011-12-14 | 2012-07-11 | 中国航空工业集团公司沈阳空气动力研究所 | Formula of oil for color oil flow test of low-speed wind tunnel |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840576A (en) * | 2017-03-10 | 2017-06-13 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel oil stream test method |
| CN106908214A (en) * | 2017-03-10 | 2017-06-30 | 中国空气动力研究与发展中心高速空气动力研究所 | The collocation method and experiment finish of high-speed wind tunnel oil stream experiment finish |
| CN106908214B (en) * | 2017-03-10 | 2019-06-21 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel oil stream tests the configuration method and test finish of finish |
| CN110243568A (en) * | 2019-08-05 | 2019-09-17 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of low-speed wind tunnel sublimed method test method based on colored indicator |
| CN110987356A (en) * | 2019-12-06 | 2020-04-10 | 中国航空工业集团公司沈阳空气动力研究所 | Formula and using method of colored oil flow suitable for subsonic velocity temporary flushing wind tunnel |
| 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 |
| CN112432755A (en) * | 2020-10-23 | 2021-03-02 | 中国空气动力研究与发展中心高速空气动力研究所 | Wide-speed-range color fluorescent oil flow reagent and viscosity adjusting method thereof |
| CN115371950A (en) * | 2022-10-21 | 2022-11-22 | 中国航空工业集团公司沈阳空气动力研究所 | Fluorescent color oil flow spectrum three-dimensional reconstruction formula and method suitable for inner pipeline |
| CN116183157A (en) * | 2023-04-25 | 2023-05-30 | 太原理工大学 | Intelligent wind tunnel experimental device |
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Application publication date: 20150819 |