GB664055A - Improvements in apparatus for wind-tunnel testing of scale models of aerothermodynamic ducts - Google Patents
Improvements in apparatus for wind-tunnel testing of scale models of aerothermodynamic ductsInfo
- Publication number
- GB664055A GB664055A GB6540/49A GB654049A GB664055A GB 664055 A GB664055 A GB 664055A GB 6540/49 A GB6540/49 A GB 6540/49A GB 654049 A GB654049 A GB 654049A GB 664055 A GB664055 A GB 664055A
- Authority
- GB
- United Kingdom
- Prior art keywords
- model
- duct
- combustion
- section
- aerothermodynamic
- 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.)
- Expired
Links
- 238000002485 combustion reaction Methods 0.000 abstract 4
- 238000004088 simulation Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K7/00—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof
- F02K7/10—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Testing Of Engines (AREA)
Abstract
664,055. Scale-model testing of ram jets. LEDUC, R. March 10, 1949 [March 12, 1948], No. 6540/49. Class 4. Apparatus for scale-model testing an aerothermodynamic duct in a wind tunnel with simulation of the effect of combustion comprises a model 3 of the duct in combination with a coaxial member 6 mounted in that portion of the model corresponding to the combustion and exhaust zones of the actual duct, so as to reduce that part of the model to an annular passage, the member 6 extending downstream from the model without abrupt change of section for attachment at 7 to a mounting remote from the model so that the forces to which it is subjected are not transmitted to the tunnel balance. At any axial section the ratio of the area of the annular passage to the total internal area of the corresponding section of the actual duct is equal to the square root of the ratio of the densities of the heated air at the temperature obtaining at that section in the duct with combustion and of air at ambient temperature. Under such conditions the mass flow of air at ambient temperature through the model duct is the same as it would be without the member 6 in place if combustion were taking place in the model, having regard to the requirements of dynamic and thermodynamic similarity between the model and full size duct.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1117104T | 1948-03-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB664055A true GB664055A (en) | 1951-01-02 |
Family
ID=9629808
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6540/49A Expired GB664055A (en) | 1948-03-12 | 1949-03-10 | Improvements in apparatus for wind-tunnel testing of scale models of aerothermodynamic ducts |
GB19352/51A Expired GB694150A (en) | 1948-03-12 | 1951-08-16 | Improvements in apparatus and method for wind-tunnel testing of scale-models of aerothermodynamic ducts |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19352/51A Expired GB694150A (en) | 1948-03-12 | 1951-08-16 | Improvements in apparatus and method for wind-tunnel testing of scale-models of aerothermodynamic ducts |
Country Status (4)
Country | Link |
---|---|
US (1) | US2618972A (en) |
DE (1) | DE860558C (en) |
FR (2) | FR1117104A (en) |
GB (2) | GB664055A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2995932A (en) * | 1953-06-24 | 1961-08-15 | Jr Everett J Hardgrave | Device for measuring mach number |
US2799160A (en) * | 1955-03-28 | 1957-07-16 | North American Aviation Inc | Wind tunnel air flow control |
US5235848A (en) * | 1991-11-27 | 1993-08-17 | The United States Of America As Represented By The Secretary Of The Navy | Thruster test fixture |
CN103486984B (en) * | 2013-10-12 | 2015-11-25 | 中国人民解放军63926部队 | The detection method of profile right alignment in a kind of wind-tunnel |
CN105571766A (en) * | 2014-10-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Surface pressure testing device for wind tunnel model |
CN112729762B (en) * | 2021-03-29 | 2021-07-02 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for measuring uniformity of icing grid and cloud and mist field |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB125564A (en) * | 1918-11-21 | 1919-04-24 | Archibald Montgomery Low | Improved Apparatus for Testing Aeroplanes. |
US1804645A (en) * | 1928-12-03 | 1931-05-12 | Thomas C Rouse | Holder for milk bottles and the like |
DE632092C (en) * | 1933-12-31 | 1936-07-02 | Siemens Schuckertwerke Akt Ges | Test system for aircraft engines |
US2380516A (en) * | 1943-01-11 | 1945-07-31 | Comet Model Airplane & Supply | Wind tunnel balance |
-
1948
- 1948-03-12 FR FR1117104D patent/FR1117104A/en not_active Expired
-
1949
- 1949-03-10 GB GB6540/49A patent/GB664055A/en not_active Expired
-
1950
- 1950-08-25 FR FR66701D patent/FR66701E/en not_active Expired
-
1951
- 1951-04-01 DE DEL8655A patent/DE860558C/en not_active Expired
- 1951-08-16 GB GB19352/51A patent/GB694150A/en not_active Expired
- 1951-08-25 US US243658A patent/US2618972A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2618972A (en) | 1952-11-25 |
GB694150A (en) | 1953-07-15 |
FR1117104A (en) | 1956-05-17 |
DE860558C (en) | 1952-12-22 |
FR66701E (en) | 1957-08-19 |
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