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Passive laminar flow control of crossflow vorticityA passive laminar flow crossflow vorticity control system includes an aerodynamic or hydrodynamic surface having geometric perturbations. The perturbations include peaks and valleys having a predetermined spacing and aligned approximately in a streamline direction to force the formation of crossflow vortices. This minimizes amplification and growth of the vortices, thus delaying transition to turbulence and reducing overall drag.
Document ID
19910014097
Acquisition Source
Legacy CDMS
Document Type
Other - Patent Application
Authors
Holmes, Bruce J. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
November 2, 1990
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NAS 1.71:LAR-13563-1
Report Number: NAS 1.71:LAR-13563-1
Patent Application Number: US-PATENT-APPL-SN-608494
Patent Number: NASA-CASE-LAR-13563-1
Accession Number
91N23410
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LAR-13563-1
Patent Application
US-PATENT-APPL-SN-608494

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