CN104849017A - Two-component oil for colorful oil flow test of low-speed wind tunnel - Google Patents
Two-component oil for colorful oil flow test of low-speed wind tunnel Download PDFInfo
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- CN104849017A CN104849017A CN201510227728.2A CN201510227728A CN104849017A CN 104849017 A CN104849017 A CN 104849017A CN 201510227728 A CN201510227728 A CN 201510227728A CN 104849017 A CN104849017 A CN 104849017A
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- oil
- fluorescent powder
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- wind tunnel
- speed wind
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- 239000003921 oil Substances 0.000 claims abstract description 41
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000002199 base oil Substances 0.000 claims abstract description 10
- 235000012736 patent blue V Nutrition 0.000 claims abstract description 4
- 238000012800 visualization Methods 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- LGZXYFMMLRYXLK-UHFFFAOYSA-N mercury(2+);sulfide Chemical compound [S-2].[Hg+2] LGZXYFMMLRYXLK-UHFFFAOYSA-N 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 108010043121 Green Fluorescent Proteins Proteins 0.000 abstract 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010428 oil painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010937 topological data analysis Methods 0.000 description 1
Landscapes
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention relates to two-component oil for the colorful oil flow test of a low-speed wind tunnel. The mass volume ratio of the colorful indicator to carrier oil of the two-component oil is 1g:3ml, wherein the colorful indicator is composed of green fluorescent powder FT-711, dark blue fluorescent powder FT-712, orange fluorescent powder FT-714, cerise fluorescent powder FT-715 or sky blue fluorescent powder FT-719, and the carrier oil is methylsilicone oil of which the kinematic viscosity is 50cs. The oil of the invention is applicable to the 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. The colorful indicator is made of sunlight fluorescent powder, so that the color of the colorful indicator is bright and has high contrast, and therefore, a base color is not needed to be sprayed on a model.
Description
Technical field
The present invention relates to a kind of bi-component 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 bi-component 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 bi-component 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=1 gram: 3 milliliters.
The present invention also has following technical characteristic:
1, 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.
The methyl-silicone oil of 2, described carrier oil plant to be kinematic viscosity be 50cs.
3, this bi-component 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 bi-component 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=1 gram: 3 milliliters.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 for sky blue fluorescent powder FT-719.The methyl-silicone oil of described carrier oil plant to be kinematic viscosity be 50cs.This bi-component 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.
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%;
Step 3: measure carrier oil plant with measuring cup, precision need higher than 1%;
Step 4: the colored indicator claiming by proportioning, measure and carrier oil plant are placed in suitable container;
Step 5: stir color by stirring rod even;
Step 6: leave standstill about 10 minutes before the test;
Step 7: if the oil plant time of repose prepared is long, repeats step 5, step 6; With a small amount of anhydrous alcohol wiping model surface, after anhydrous alcohol volatilizees completely, with the oil plant of standing about 10 minutes is quick, the even scrubbing brush of oil painting scrubbing brush on model surface;
Step 8: 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 (4)
1., for a bi-component 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=1 gram: 3 milliliters.
2. a kind of bi-component 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 bi-component 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 50cs.
4. a kind of bi-component oil plant for color oil flow test of low-speed wind tunnel according to claim 1, is characterized in that, this bi-component 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227728.2A CN104849017A (en) | 2015-04-29 | 2015-04-29 | Two-component oil for colorful oil flow test of low-speed wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227728.2A CN104849017A (en) | 2015-04-29 | 2015-04-29 | Two-component oil for colorful oil flow test of low-speed wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104849017A true CN104849017A (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510227728.2A Pending CN104849017A (en) | 2015-04-29 | 2015-04-29 | Two-component oil for colorful oil flow test of low-speed wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104849017A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489703A (en) * | 2018-03-23 | 2018-09-04 | 西北工业大学 | A kind of colorful oil flow formula suitable for high-speed wind tunnel for clearly demarcating range of Mach numbers |
| CN108760225A (en) * | 2018-04-03 | 2018-11-06 | 西北工业大学 | A kind of oil stream formula of the high-speed wind tunnel oil stream experiment of clearly calibration range of Mach numbers |
| CN108896270A (en) * | 2018-04-03 | 2018-11-27 | 西北工业大学 | A kind of oil stream formula of low-speed wind tunnel oil stream experiment that clearly demarcating range of Mach numbers |
| CN108982052A (en) * | 2018-04-03 | 2018-12-11 | 西北工业大学 | A kind of colorful oil flow formula of low-speed wind tunnel oil stream experiment that clearly demarcating range of Mach numbers |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104312427A (en) * | 2014-10-11 | 2015-01-28 | 铜陵市新泰电容电器有限责任公司 | Oily anti-oxidation film surface oil material for metalized capacitor |
-
2015
- 2015-04-29 CN CN201510227728.2A patent/CN104849017A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104312427A (en) * | 2014-10-11 | 2015-01-28 | 铜陵市新泰电容电器有限责任公司 | Oily anti-oxidation film surface oil material for metalized capacitor |
Non-Patent Citations (1)
| Title |
|---|
| 尹协振，等: "《实验力学》", 31 January 2012, 北京：高等教育出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489703A (en) * | 2018-03-23 | 2018-09-04 | 西北工业大学 | A kind of colorful oil flow formula suitable for high-speed wind tunnel for clearly demarcating range of Mach numbers |
| CN108760225A (en) * | 2018-04-03 | 2018-11-06 | 西北工业大学 | A kind of oil stream formula of the high-speed wind tunnel oil stream experiment of clearly calibration range of Mach numbers |
| CN108896270A (en) * | 2018-04-03 | 2018-11-27 | 西北工业大学 | A kind of oil stream formula of low-speed wind tunnel oil stream experiment that clearly demarcating range of Mach numbers |
| CN108982052A (en) * | 2018-04-03 | 2018-12-11 | 西北工业大学 | A kind of colorful oil flow formula of low-speed wind tunnel oil stream experiment that clearly demarcating range of Mach numbers |
| 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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Application publication date: 20150819 |
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