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 GB37149/58A GB3714958A GB885449A GB 885449 A GB885449 A GB 885449A GB 37149/58 A GB37149/58 A GB 37149/58A GB 3714958 A GB3714958 A GB 3714958A GB 885449 A GB885449 A GB 885449A
Authority
GB
United Kingdom
Prior art keywords
boundary layer
fluid
solid surface
vortex
control
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
GB37149/58A
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
Application filed by RAYMOND ALAN WALLIS filed Critical RAYMOND ALAN WALLIS
Priority to GB37149/58A priority Critical patent/GB885449A/en
Publication of GB885449A publication Critical patent/GB885449A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B64C21/04—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like for blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/04—Boundary layer controls by actively generating fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/16—Boundary layer controls by blowing other fluids over the surface than air, e.g. He, H, O2 or exhaust gases
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Cleaning In General (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

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.
GB37149/58A 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
GB37149/58A 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
GB37149/58A 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 GB885449A (en) 1961-12-28

Family

ID=10394149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37149/58A 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 FOR DISTURBING AN AIR FLOW IN 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

Similar Documents

Publication Publication Date Title
Wille et al. Report on the first European Mechanics Colloquium, on the Coanda effect
Abraham The flow of round buoyant jets issuing vertically into ambient fluid flowing in a horizontal direction
ES2011797B3 (en) APPARATUS TO GENERATE WAVES.
JPS55128465A (en) Recording head
GB885449A (en) Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface
GB1314579A (en) Aerofoils
JPS56130213A (en) Fine bubble generator
GB1269375A (en) Improvements in or relating to ground-effect machines
GB1461013A (en) Fluid flowmeters
GB890418A (en) Lateral control means for aeroplanes
ALVAREZ An approximate method for the calculation of the velocities induced by a wing oscillating in subsonic flow
DE940509C (en) Fixed-wing aircraft with lift generation without propulsion
GB881320A (en) A generator for the production of mechanical foam
FFOWCSWILLIAMS Technical evaluation report on Fluid Dynamics Panel Specialists Meeting on noise mechanisms
GB511270A (en) Improvements in and relating to nozzles
JPS5718267A (en) Ink jet recording device
Seidov Synoptic eddies in the ocean- A numerical experiment
PATANKAR et al. Three-dimensional curved wall jets(Velocity profiles of turbulent three-dimensional incompressible air jet flow from rectangular orifice tangent to and along curved wall surface)
Black A note on the mixing process in the flow induced by a high velocity air jet
JPS5454437A (en) Air harmonizing device
BELOV et al. The modeling of stalled flows in the shock layer of obstacles in nonuniform flow
EP0085583A3 (en) Liquid atomizing method and apparatus
Ishii Symmetric flow in axially-symmetric nozzles
HAMBY An experimental study of the effect of a low speed external flow on a coanda effect flap[M. S. Thesis]
BAUDU et al. Modeling dynamic stall on an oscillating airfoil