Time-dependent quasi-one-dimensional simulations of high enthalpy pulse facilities

摘要: A numerical methodology is presented for simulating the time-dependent reacting flow inside entire length of high enthalpy pulse facilities. The based on a finite-volume TVD scheme quasi-1D Euler equations coupled with finite-rate chemistry. moving mesh and tracking gas interfaces are used to overcome certain difficulties associated these types flows. Simulation results helium driven shock tube show that computations can be predict off-tailored behavior tubes tunnels. Particular attention given through NASA Ames 16-inch combustion tunnel which influence nonuniformities in driver section reservoir conditions; effect finite secondary diaphragm opening times chemical composition test HYPULSE expansion tube.