An efficient numerical method for solving the time-dependent compressible Navier-Stokes equations at high Reynolds numberA fine-mesh method incorporating two new operators, which drastically reduces the computation time, has been developed for solving the time-dependent Navier-Stokes equations at flight Reynolds numbers. The approach time-splits the equations into a hyperbolic part and a parabolic part, solves the hyperbolic part by a new explicit numerical method based on characteristics theory, and solves the parabolic part by a new efficient implicit parabolic method. The method has reduced the computation time by one and two orders of magnitude from that required previously to solve for the interaction of a shock wave with a boundary layer on a flat plate.
Document ID
19770063285
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Maccormack, R. W. (NASA Ames Research Center Moffett Field, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1976
Subject Category
Aerodynamics
Meeting Information
Meeting: Winter Annual Meeting on Computing in applied mechanics