A computational fluid dynamics code for two-dimensional, multi-species, laminar NavierStokes equations is developed to simulate a pulsed detonation based propulsion system and to analyze its performance. The stiffness due to coupling the fluid dynamics and the chemical kinetics is properly taken care of by using a time-operator splitting method and a variable coefficient ordinary differential equation solver. A second-order Roe scheme with a minmod limiter is explicitly used for space descretization, while a second-order, two-step Runge-Kutta method is used for time descretization. In space integration, a finite volume method and a cell-centered scheme are employed. The first-order derivatives in the equations of transport properties are discretized by a second-order central finite difference method. Chemical kinetics for hydrogen-air mixture is modeled using GRI-Mech. Code validation and investigation of a pulsed normal detonation wave engine for inviscid and viscous cases are accomplished in this work. The code is ported to a high-performance parallel machine with Message-Passing Interface.

No abstract

No abstract

No abstract