Development of non-conventional control methods for high angle of attack flight using vortex manipulationLow-speed wind tunnel experiments have been conducted to define methods for the manipulation of a generic fighter forebody's vortices in order to generate controlled yawing moments at high alpha. Attention is given to two vortex-control schemes: one involving independently controlled forebody tip strakes, and the other individually controlled blowing ports on the forebody. The most effective methods for forebody yawing-moment control were found to be the minimization of natural asymmetry with a pair of symmetrically mounted tip strakes, and the perturbation of the vortex system away from the symmetric condition with asymmetric blowing.
Document ID
19890060282
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Malcolm, Gerald N. (Eidetics International, Inc. Torrance, CA, United States)
Ng, T. Terry (Eidetics International, Inc. Torrance, CA, United States)
Lewis, Liane C. (Eidetics International, Inc. Torrance, CA, United States)
Murri, Daniel G. (NASA Langley Research Center Hampton, VA, United States)