Accession Number : ADP002944
Title : The Coupling of Tracked and Interior Waves in a Front Tracking Scheme,
Corporate Author : NEW YORK UNIV NY COURANT INST OF MATHEMATICAL SCIENCES
Personal Author(s) : Glimm,J. ; McBryan,O. ; Plohr,B. ; Yaniv,S.
Report Date : FEB 1984
Pagination or Media Count : 9
Abstract : Front tracking is a method for numerical solution of hydrodynamical problems whose basic element is a system of moving curves (i.e. the front). Each curve represents a physical wave. For gas dynamics, these waves are either shock waves (nonlinear sound waves) or contact discontinuities (temperature jumps or slip lines). In a front tracking scheme certain waves are given a more exact treatment through the introduction of a dynamically moving, lower dimensional grid that ids aligned with the wave fronts. these tracked waves are propagated in time through the solution of Rankine-Hugoniot relations; the remaining waves are propagated using finite difference equations, This paper discusses the coupling between these two wave systems.
Descriptors : *Wavefronts, *Numerical analysis, *Shock waves, Coupling(Interaction), Hydrodynamics, Wave propagation, Curvature, Sound waves, Internal, Tracking, Time dependence, Finite difference theory, Pressure, Density, Hugoniot equations
Distribution Statement : APPROVED FOR PUBLIC RELEASE