GB0905941D0 - A flow control device - Google Patents

A flow control device

Info

Publication number
GB0905941D0
GB0905941D0 GBGB0905941.1A GB0905941A GB0905941D0 GB 0905941 D0 GB0905941 D0 GB 0905941D0 GB 0905941 A GB0905941 A GB 0905941A GB 0905941 D0 GB0905941 D0 GB 0905941D0
Authority
GB
United Kingdom
Prior art keywords
passage
control device
inlet
flow control
fluid flow
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.)
Ceased
Application number
GBGB0905941.1A
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GBGB0905941.1A priority Critical patent/GB0905941D0/en
Publication of GB0905941D0 publication Critical patent/GB0905941D0/en
Priority to PCT/EP2010/052265 priority patent/WO2010115656A1/en
Ceased 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
    • B64C21/025—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like for simultaneous blowing and sucking
    • 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
    • B64C21/08—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like adjustable
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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
    • F15D1/10—Influencing flow of fluids around bodies of solid material
    • F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
    • 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
    • B64C2230/06—Boundary layer controls by explicitly adjusting fluid flow, e.g. by using valves, variable aperture or slot areas, variable pump action or variable fluid pressure
    • 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
    • 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
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A flow control device (6) for controlling a fluid flow over a surface (7), wherein the flow control device comprises: a first passage (10) comprising a first inlet (12) and an outlet (14), the outlet (14) being disposed on the surface (7), and wherein the first passage (10) comprises a Venturi; a second passage (20) comprising a second inlet (22), the second inlet (22) being disposed on the surface (7); and a third passage (30) for receiving a fluid flow from a flow source; wherein the first, second and third passages are arranged such that the second and third passages feed into the first inlet of the first passage and that, in use, a portion of the fluid flow over the surface is drawn into the second passage, mixes with the fluid flow from the flow source received via the third passage, and exits the outlet disposed on the surface via the first passage.
GBGB0905941.1A 2009-04-06 2009-04-06 A flow control device Ceased GB0905941D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0905941.1A GB0905941D0 (en) 2009-04-06 2009-04-06 A flow control device
PCT/EP2010/052265 WO2010115656A1 (en) 2009-04-06 2010-02-23 A flow control device for controlling a fluid flow over a surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0905941.1A GB0905941D0 (en) 2009-04-06 2009-04-06 A flow control device

Publications (1)

Publication Number Publication Date
GB0905941D0 true GB0905941D0 (en) 2009-05-20

Family

ID=40750181

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0905941.1A Ceased GB0905941D0 (en) 2009-04-06 2009-04-06 A flow control device

Country Status (2)

Country Link
GB (1) GB0905941D0 (en)
WO (1) WO2010115656A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180244370A1 (en) 2017-02-18 2018-08-30 Jean-Eloi William Lombard Passive flow control mechanism for suppressing tollmien-schlichting waves, delaying transition to turbulence and reducing drag

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841344A (en) * 1955-11-28 1958-07-01 Stroukoff Michael Boundary layer control
WO1991009776A1 (en) * 1989-12-29 1991-07-11 Venturi Applications, Inc. Venturi-enhanced airfoil
US7686257B2 (en) * 2005-05-23 2010-03-30 Lockheed Martin Corporation Dual bimorph synthetic pulsator

Also Published As

Publication number Publication date
WO2010115656A1 (en) 2010-10-14

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)