F - Mech Eng,Light,Heat,Weapons – 15 – D
Patent
F - Mech Eng,Light,Heat,Weapons
15
D
F15D 1/12 (2006.01) B64C 21/00 (2006.01) F28F 13/02 (2006.01)
Patent
CA 2138268
2138268 9400342 PCTABS00030 The boundary layer of a fluid travelling in a mean-flow direction relative to a surface (104) of a wall of a body is controlled by generating in a near-wall region of the flow a magnetic field B B7 having flux lines (103) parallel to the surface of the wall and an electric current density J B7 (109) traversing the magnetic flux lines in the fluid. An electrolyte (130) or other conductivity-enhancing material is introduced into the flow to provide an electrical conductivity gradient in the near-wall region. The magnetic field B B7 (103) and the electric current density J B7 (109) create in the fluid a force J B7 x B B7 (131) having a component normal to the surface (104) of the wall that because of the increased conductivity gradient near the surface can stabilize or destabilize flow in the boundary layer. Numerous aspects of the fluid flow and its interaction with the body can thus be controlled.
Brown Garry L.
Nosenchuck Daniel M.
British Technology Group Usa Inc.
Mccarthy Tetrault Llp
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