GB885449A - Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface - Google Patents

Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface

Info

Publication number
GB885449A
GB885449A GB3714958A GB3714958A GB885449A GB 885449 A GB885449 A GB 885449A GB 3714958 A GB3714958 A GB 3714958A GB 3714958 A GB3714958 A GB 3714958A GB 885449 A GB885449 A GB 885449A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
boundary layer
surface
fluid
control
vortex
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
GB3714958A
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.)
RAYMOND ALAN WALLIS
Original Assignee
RAYMOND ALAN WALLIS
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C21/00Influencing air-flow over aircraft surfaces by affecting boundary-layer flow
    • B64C21/02Influencing air-flow over aircraft surfaces by affecting boundary-layer flow by use of slot, ducts, porous areas, or the like
    • B64C21/04Influencing air-flow over aircraft surfaces by affecting boundary-layer flow by use of slot, ducts, porous areas, or the like for blowing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C2230/00Boundary layer controls
    • B64C2230/04Boundary layer controls by actively generating fluid flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C2230/00Boundary layer controls
    • B64C2230/16Boundary layer controls by blowing other fluids over the surface than air, e.g. He, H, O2 or exhaust gases
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/10Drag reduction
    • Y02T50/16Drag reduction by influencing airflow
    • Y02T50/166Drag reduction by influencing airflow by influencing the boundary layer

Abstract

885,449. Boundary layer control. WALLIS, R. A. Feb. 11, 1960 [Nov. 18, 1958], No. 37149/58. Class 4. Apparatus for re-energising the boundary layer of a fluid flowing relatively to a solid surface, irrespective of whether the boundary layer is attached to or has separated from the surface comprises means for injecting from the surface into the boundary layer jets of fluid having components of velocity transverse to the flow of the free stream and parallel as well as normal to the surface, whereby each jet generates a single strong vortex causing intermixing between the boundary layer and the free stream. Fluid is blown through passages 12, 14, which perforate the upper surface of the aerofoil skin 10 near the leading edge. The circulation and the core of the vortex produced by the jet issuing from passage 12 is indicated by 18 and 20 respectively. A wind-tunnel model incorporating vortex-generating jets is also described.
GB3714958A 1958-11-18 1958-11-18 Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface Expired GB885449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3714958A GB885449A (en) 1958-11-18 1958-11-18 Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3714958A GB885449A (en) 1958-11-18 1958-11-18 Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface

Publications (1)

Publication Number Publication Date
GB885449A true true GB885449A (en) 1961-12-28

Family

ID=10394149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3714958A Expired GB885449A (en) 1958-11-18 1958-11-18 Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface

Country Status (1)

Country Link
GB (1) GB885449A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099691A (en) * 1976-12-13 1978-07-11 The Boeing Company Boundary layer control system for aircraft
GB2186033A (en) * 1986-02-28 1987-08-05 Nei International Research & D Wind turbine
WO2007148008A1 (en) * 2006-06-21 2007-12-27 Renault S.A.S Method and device for disturbing a flow of air at the wall of a motor vehicle
EP2031241A1 (en) * 2007-08-29 2009-03-04 Lm Glasfiber A/S Blade for a rotor of a wind turbine provided with barrier generating means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099691A (en) * 1976-12-13 1978-07-11 The Boeing Company Boundary layer control system for aircraft
GB2186033A (en) * 1986-02-28 1987-08-05 Nei International Research & D Wind turbine
GB2186033B (en) * 1986-02-28 1990-01-04 Northern Eng Ind Wind turbine
WO2007148008A1 (en) * 2006-06-21 2007-12-27 Renault S.A.S Method and device for disturbing a flow of air at the wall of a motor vehicle
FR2902745A1 (en) * 2006-06-21 2007-12-28 Renault Sas Method and device disturbance of an air flow to the wall of a motor vehicle
EP2031241A1 (en) * 2007-08-29 2009-03-04 Lm Glasfiber A/S Blade for a rotor of a wind turbine provided with barrier generating means
WO2009026927A2 (en) * 2007-08-29 2009-03-05 Lm Glasfiber A/S Blade for a rotor of a wind turbine provided with barrier generating means
WO2009026927A3 (en) * 2007-08-29 2009-08-13 Lm Glasfiber As Blade for a rotor of a wind turbine provided with barrier generating means

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