Accession Number : ADP004936

Title :   Front Tracking and Two Dimensional Riemann Problems: A Conference Report.

Corporate Author : COULTER ELECTRONICS CO CHICAGO IL

Personal Author(s) : Glimm,J. ; Klingenberg,C. ; McBryan,O. ; Plohr,B. ; Sharp,D.

Report Date : FEB 1985

Pagination or Media Count : 21

Abstract : A substantial improvement in resolution has been achieved for the computation of jump discontinuities in gas dynamics using the method of front tracking. The essential feature of this method is that a lower dimensional grid is fitted to and follows the discontinuous waves. At the intersection points of the discontinuities, two-dimensional Riemann problems occur. In this paper we studied such two-dimensional Riemann problems from both numerical and theoretical points of view. Specifically included is a numerical solution for the Mach reflection, a general classification scheme for two-dimensional elementary waves, and a discussion of problems and conjectures in this area. (Author)

Descriptors :   *GAS DYNAMICS, *COMPUTATIONS, *SHOCK WAVES, DISCONTINUITIES, TWO DIMENSIONAL

Distribution Statement : APPROVED FOR PUBLIC RELEASE