NUMERICAL-SIMULATION OF SUPERCRITICAL SHOCK-WAVE IN CHANNEL CONTRACTION

The shock wave is a discontinuous profile of rapidly varied Bow. A ser ies of shock waves in channel contraction are numerically simulated an d their results are verified using experimental data. Based on time-an d space-marching approaches, two high-resolution finite-difference num erical schemes are applied for simulation of two-dimensional oblique s hock waves. To initiate the simulation, the body-fitted coordinate tra nsformation is employed to fit the channel boundary geometry, which is then followed by a set of well designed and controlled numerical simu lations. The experimental data of Ippen and TPWCB are used to examine the validity of numerical results. (C) 1998 Elsevier Science Ltd. All rights reserved.