Numerical Simulation on Rotating Detonation Engine: Effects of Higher-Order Scheme

Abstract

The implementation and simulations of the robust weighted compact nonlinear scheme (RWCNS) for the two-dimensional rotating detonation engine are performed using the detailed chemistry model. The comparison of the MUSCL and the 5th-order RWCNS (WCNS5MN) indicates that the shock front and the contact surface for the WCNS5MN can be improved with the better resolution than those for the MUSCL and that both rotating velocities are approximately 97% of the CJ value. I sp for the WCNS5MN is approximately 5 s larger than I sp for the MUSCL because the mass flow rates for the WCNS5MN are 2-4% smaller than those for the MUSCL.