An embedded grid formulation applied to a delta wingApplications using a three-dimensional embedded grid scheme are made to high angle of attack viscous flow over two bodies: a slender cone using the conical approximation and a 75 deg swept delta wing. The embedded grids are used principally to improve the numerical resolution of the separated vortical flow above the body. Detailed comparisons are made with experimental measurements of the velocity field over the delta wing. The prediction of the maximum steamwise velocity is improved using two levels of embedded grid refinement but is still less than the experimental measurements available from a laser velocimeter.
Document ID
19900035161
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Krist, Sherrie L. (Vigyan Research Associates, Inc. Hampton, VA, United States)
Thomas, James L. (Vigyan Research Associates, Inc. Hampton, VA, United States)
Sellers, William L., III (Vigyan Research Associates, Inc. Hampton, VA, United States)
Kjelgaard, Scott O. (NASA Langley Research Center Hampton, VA, United States)