The Numerical Method And Simulation For Propagating Front Of Non-Ideal 3D Detonation

This paper study the Level Set method for propagation of non-ideal detonation based on DSD (Detonation Shock Dynamics) model. In order to to simplify the boundary condition treatment in Cartesian coordinate,body-fitted coordinate are employed. We give an algorithm of the boundary condition.According to the Hamilton-Jacobi formulation of the Godunov's scheme,we study finite difference mothed for the propagation equation of non-ideal detonation in non-orthogonal body-fitted coordinate and present an algorithm. We develop the code for simulating propagation of non-ideal detonation in 2D and 3D and give a few calculations.The results are in agreement with analytic results in body-fitted coordinate.For body of revolution,the 2D calculations are in agreement with the 3D calculations. The algorithm and the code in this paper have been validated.The production in this paper fit for numerical simulating propagation and interaction of non-ideal detonation in 2D abd 3D.It is the base for integrating fluid-dynamics method.