Title:
【発明の名称】境界層制御のための多電磁タイル
Document Type and Number:
Japanese Patent JPH08503433
Kind Code:
A
Abstract:
The boundary layer of a fluid travelling in a mean-flow direction relative to a surface of a wall (100) of a body is controlled by generating in the fluid a magnetic field B &cir& NOt (103) having flux lines parallel to the surface of the wall and an electric current density J &cir& NOt (109) traversing the magnetic flux lines in the fluid to form a control region. An electrolyte or other conductivity-enhancing material (13) is introduced into the flow to provide a conductivity gradient in the fluid flow in the near-wall region. The magnetic field B &cir& NOt (103) and the electric current density J &cir& NOt (109) create in the control region a force J &cir& NOt X B &cir& NOt (131) having a component normal to the surface of the wall that because of the conductivity gradient in the fluid flow near the surface can stabilize or destabilize flow in the boundary layer. A plurality of such control regions are arranged in an array of control tiles that can be individually actuated to reduce the power required to provide boundary layer control over a given area.
Inventors:
Nocentuk, Daniel, M.
Brown, Gerry, Elle.
Brown, Gerry, Elle.
Application Number:
JP51103194A
Publication Date:
April 16, 1996
Filing Date:
June 25, 1993
Export Citation:
Assignee:
British Technology Group USA, Inc.
International Classes:
B63G8/00; B63H1/18; B64C21/10; B64C23/00; B63B1/32; (IPC1-7): B63B1/32; B64C21/10; B63H1/18; B63G8/00
Attorney, Agent or Firm:
Masao Okabe (9 others)