Numerical Investigation of Contact Burning in an Air-Breathing Continuous Rotating Detonation Engine

Three-dimensional (3D) numerical simulations of a continuous rotating detonation engine are carried out with an unsteady Reynolds-averaged Navier-Stokes solver. The second-order upwind advection upstream splitting method and Runge-Kutta used to discretize space time terms, detailed 9-species 19-step hydrogen-oxygen reactions applied in this study. Nonpremixed is successfully realized numerically, the characteristics wave revealed. expanding angle combustor has great impact on shape but little influence propagation velocity. evolution combustion contact region analyzed detail; more accurate schematic non-premixed air-breathing engines given paper. A rough analysis heat performance shows that release approximately one-third total configurations combustors do not affect proportion.