Internal Shock Waves In Gas Particle Flows
Free (open access)
Shock waves are present in most high-speed flow applications. They affect the performance of high-speed flow devices and can induce flow separation. The characteristics of shock-wave/boundary-layer interactions have been thoroughly investigated in gases but not in two-phase flows. This study deals with the effect of particle loading on internal shock waves and their interactions with the boundary layers in supersonic nozzles. Numerical solutions to the Reynolds- averaged Navier-Stokes equations in conservation form were obtained, based on Eulerian-Lagrangian methodology with a two-way coupling model. Results are presented for the flow field and shock structure at different particle loadings. The surface pressure distribution over the nozzle flaps are compared to existing experimental data with no particles.