Computation of Reactive Duct Flows in External Fields
Abstract
A GRPscheme is introduced for the numerical integration of the Euler system of equations of compressible reactive flow in a duct of variable cross section, subject to an external potential. The GRP (generalized Riemann problem) scheme is based on an analytic solution of the GRP at jump discontinuities. It is a secondorder scheme generalizing the firstorder Godunov scheme, having the property of high resolution of shocks and other discontinuities. Some numerical examples are considered, including an infinite spherical reflected shock, a spherical blast wave and gas collapse under an external potential.
 Publication:

Journal of Computational Physics
 Pub Date:
 January 1990
 DOI:
 10.1016/00219991(90)90099M
 Bibcode:
 1990JCoPh..86..225B
 Keywords:

 Combustible Flow;
 Computational Fluid Dynamics;
 Detonable Gas Mixtures;
 Ducted Flow;
 Euler Equations Of Motion;
 Numerical Integration;
 Blast Loads;
 Cauchy Problem;
 Reflected Waves;
 Shock Waves;
 Spherical Waves;
 Fluid Mechanics and Heat Transfer