Accession Number : ADA288726

Title :   Spectral Solution of the Viscous Blunt Body Problem, 2: Multidomain Approximation.

Descriptive Note : Contractor rept.,

Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s) : Kopriva, David A.

PDF Url : ADA288726

Report Date : AUG 1994

Pagination or Media Count : 29

Abstract : We present steady solutions of high speed viscous flows over blunt bodies using a multidomain Chebyshev spectral collocation method. The region within the shock layer is divided into subdomains so that internal layers can be well-resolved. In the interiors of the subdomains, the solution is approximated by Chebyshev collocation. At interfaces between subdomains, the advective terms are upwinded and the viscous terms are treated by a penalty method. The method is applied to five flows the Mach number range 5-25 and Reynolds number range 2,000 - 83,000, based on nose radius. Results are compared to experimental data and to a finite difference result.

Descriptors :   *VISCOUS FLOW, *CHEBYSHEV APPROXIMATIONS, STEADY STATE, METHODOLOGY, EXPERIMENTAL DATA, LAYERS, HIGH VELOCITY, SPECTRA, SOLUTIONS(GENERAL), INTERNAL, SHOCK, FLOW, VISCOSITY, NOSES, ADVECTION, BLUNT BODIES, PENALTIES, RADIUS(MEASURE).

Subject Categories : Numerical Mathematics
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE