GB783046A - Improvements in supersonic wind-tunnels for a variable mach number - Google Patents

Improvements in supersonic wind-tunnels for a variable mach number

Info

Publication number
GB783046A
GB783046A GB36050/55A GB3605055A GB783046A GB 783046 A GB783046 A GB 783046A GB 36050/55 A GB36050/55 A GB 36050/55A GB 3605055 A GB3605055 A GB 3605055A GB 783046 A GB783046 A GB 783046A
Authority
GB
United Kingdom
Prior art keywords
tunnel
gas
slots
valve
throat
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
Application number
GB36050/55A
Inventor
Louis Marie Gabriel
Jean Henri Bertin
Marcel Kadosch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
SNECMA SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of GB783046A publication Critical patent/GB783046A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F15D1/04—Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/914—Device to control boundary layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

783,046. Wind tunnels. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Dec. 15, 1955 [Dec. 20, 1954], No. 36050/55. Class 4. A supersonic wind tunnel comprises one or more nozzles disposed at the throat upstream of the working section, to provide an auxiliary variable jet of gas to restrict the effective crosssection of the throat, enabling various Mach numbers to be obtained in the working section. In Fig. 2, two slots 10 are provided in the walls adjacent the throat 3 of a rectangular wind tunnel with a working section 4. Two cylinders 11 close these slots, and their hollow interiors are connected with a source of gas under high relative pressure, e.g. the wind tunnel compresser, an auxiliary compresser, or the atmosphere in the case of a suction operated tunnel. The gas issues from slots 7, which can be varied in direction by levers 12, interconnected to move equally and oppositely by a rack and pinion gear, Fig. 3 (not shown). A turnbuckle is provided in the linkage for datum shift of one lever. In Fig. 4, the gas is supplied through a valve 8 to three nozzles 7a, 7b and 7c, of which the first may be the largest, having different inclinations to the tunnel axis. A suction orifice 22 is controlled by a valve 23, to cause the flow to adhere to the tunnel wall. A further injection orifice 20 is supplied through a valve 21 and pipe 24 from a tapping point in the tunnel at a region of higher static pressure. This orifice is so inclined as to energize the boundary layer in the tunnel.
GB36050/55A 1954-12-20 1955-12-15 Improvements in supersonic wind-tunnels for a variable mach number Expired GB783046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1117244T 1954-12-20

Publications (1)

Publication Number Publication Date
GB783046A true GB783046A (en) 1957-09-18

Family

ID=9629901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36050/55A Expired GB783046A (en) 1954-12-20 1955-12-15 Improvements in supersonic wind-tunnels for a variable mach number

Country Status (3)

Country Link
US (1) US2948148A (en)
FR (1) FR1117244A (en)
GB (1) GB783046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033185A (en) * 1976-05-18 1977-07-05 The United States Of America As Represented By The Secretary Of The Army Wind-tunnel simulator
CN104316287A (en) * 2014-10-24 2015-01-28 中国人民解放军国防科学技术大学 Two-dimensional variable-mach-number spray pipe and supersonic-velocity variable-mach-number wind tunnel using same

Families Citing this family (39)

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Publication number Priority date Publication date Assignee Title
US3123285A (en) * 1964-03-03 Diffuser with boundary layer control
US3005338A (en) * 1957-09-23 1961-10-24 Paul A Libby Nozzle cooling apparatus and method
US3212515A (en) * 1962-07-13 1965-10-19 Giannini Controls Corp Fluid amplifier
US3280832A (en) * 1963-11-18 1966-10-25 Retec Inc Cycling valve
FR1463771A (en) * 1963-12-07 1966-07-22 Snecma Device for adjusting the flow of fluid in a channel
US3298599A (en) * 1964-06-22 1967-01-17 Cons Vacuum Corp Pump nozzle
US3396738A (en) * 1964-11-27 1968-08-13 American Standard Inc Fluid guiding method and apparatus
US3302866A (en) * 1965-03-16 1967-02-07 Polytechnic Inst Brooklyn High velocity fluid accelerator
US3452782A (en) * 1966-07-08 1969-07-01 Gen Electric Fluid discharge casing
US3363545A (en) * 1966-07-08 1968-01-16 Owens Illinois Inc Electrical printing apparatus with means to control boundary layer effect
GB1259124A (en) * 1968-12-06 1972-01-05
US3568703A (en) * 1969-04-07 1971-03-09 Us Army Supersonic jet engine inlet flueric bypass control
US3665949A (en) * 1969-06-27 1972-05-30 Bendix Corp Gaseous controlled fluidic throttling valve
US3695290A (en) * 1970-07-22 1972-10-03 Kenneth R Evans Noise suppressing device for fluid flow lines
US4029430A (en) * 1975-09-02 1977-06-14 Fonda Bonardi Giusto Short subsonic diffuser for large pressure ratios
US4515524A (en) * 1982-09-27 1985-05-07 Allis-Chalmers Corporation Draft tube for hydraulic turbine
US4989807A (en) * 1988-04-07 1991-02-05 Grumman Aerospace Corporation S-shaped jet engine inlet diffuser
US5099685A (en) * 1990-08-09 1992-03-31 The Boeing Company Boundary layer control diffuser for a wind tunnel or the like
DE4343009C2 (en) * 1993-12-16 1996-06-13 Daimler Benz Aerospace Ag Injection device, in particular for a jet engine
US5996936A (en) * 1997-09-29 1999-12-07 General Electric Company Fluidic throat exhaust nozzle
US6444033B1 (en) * 1999-11-12 2002-09-03 Delsys Pharmaceutical Corp. Article comprising a diffuser with flow control features
US6336319B1 (en) 2000-05-26 2002-01-08 General Electric Company Fluidic nozzle control system
US8225592B1 (en) * 2003-06-09 2012-07-24 Florida State University Research Foundation Microjet noise suppression system for jet engines
US7967105B2 (en) * 2006-06-19 2011-06-28 Yen Tuan Aero-acoustic aviation engine inlet for aggressive noise abatement
DE102006041955A1 (en) * 2006-08-30 2008-03-20 Deutsches Zentrum für Luft- und Raumfahrt e.V. Method for controlling combustion in a combustion chamber and combustion chamber device
US20090165864A1 (en) * 2007-12-26 2009-07-02 Rolls-Royce North American Technologies, Inc. Supersonic inlet
RU2422193C2 (en) 2009-09-30 2011-06-27 Фисоник Холдинг Лимитед Device to prepare water-fuel emulsion
US8485455B2 (en) * 2010-11-20 2013-07-16 Fisonic Holding Limited Supersonic nozzle for boiling liquid
CN103135624B (en) * 2012-12-19 2015-05-13 中国空气动力研究与发展中心高速空气动力研究所 Method for controlling temporary flush type supersonic velocity wind tunnel with ejector function
CN103954424B (en) * 2014-04-30 2016-05-04 北京大学 Expand method and the hypersonic nozzle in hypersonic quiet jet pipe static test district
KR101909595B1 (en) 2017-04-28 2018-12-19 두산중공업 주식회사 Exhaust Diffuser Having Spray Hole And Suction Hole, And Gas Turbine Having The Same
CN109827737B (en) * 2017-11-23 2023-08-11 成都凯天电子股份有限公司 Variable outlet synthetic jet actuator
CN107741313A (en) * 2017-11-29 2018-02-27 中国航空工业集团公司沈阳空气动力研究所 A kind of low wide Mach number wind-tunnel laminar flow double venturi of disturbance
CN107806977B (en) * 2017-11-29 2024-04-09 中国航空工业集团公司沈阳空气动力研究所 Combined wide Mach number high enthalpy pulse wind tunnel tube structure
CN113959674B (en) * 2021-10-27 2023-07-07 中国航发沈阳发动机研究所 Rectangular wind tunnel end wall surface layer sucking structure
CN114061891B (en) * 2022-01-18 2022-03-29 中国空气动力研究与发展中心高速空气动力研究所 Downward-blowing injection type static pressure matching control method for large-size open jet wind tunnel
CN114061890B (en) * 2022-01-18 2022-03-29 中国空气动力研究与发展中心高速空气动力研究所 Downward blowing type static pressure matching control method for large-size opening jet flow wind tunnel
CN114608792B (en) * 2022-05-10 2022-07-15 中国空气动力研究与发展中心高速空气动力研究所 Method for measuring uniform region of sub-transonic jet flow field of high-speed jet wind tunnel by short-shaft probe
CN116358825A (en) * 2023-05-26 2023-06-30 中国航空工业集团公司沈阳空气动力研究所 Continuous wind tunnel Mach number fine adjustment mechanism and adjustment method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB616163A (en) * 1943-01-19 1949-01-18 Groupement Francais Pour Le Developpement Des Recherches Aeronautiques Means for avoid separation and turbulence in fluids moving with respect to solid surfaces
US2729974A (en) * 1952-02-15 1956-01-10 United Aircraft Corp Transonic flow control with reduced power
US2678560A (en) * 1952-10-09 1954-05-18 Us Navy Supersonic wind tunnel
US2788719A (en) * 1954-02-11 1957-04-16 Klmberly Clark Corp Flow control apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033185A (en) * 1976-05-18 1977-07-05 The United States Of America As Represented By The Secretary Of The Army Wind-tunnel simulator
CN104316287A (en) * 2014-10-24 2015-01-28 中国人民解放军国防科学技术大学 Two-dimensional variable-mach-number spray pipe and supersonic-velocity variable-mach-number wind tunnel using same
CN104316287B (en) * 2014-10-24 2017-01-11 中国人民解放军国防科学技术大学 Two-dimensional variable-mach-number spray pipe and supersonic-velocity variable-mach-number wind tunnel using same

Also Published As

Publication number Publication date
US2948148A (en) 1960-08-09
FR1117244A (en) 1956-05-18

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