爆轰是工程物理领域重要的研究内容，它的发生、发展与传播是一个复杂的流体动力学过程，涉及到多流体的混合与复杂的状态方程，本项目将在前期工作的基础上做更深入的研究，拟研究爆轰驱动下复杂流体力学的数值方法。主要内容：（1）研究混合单元的物理量的构造. 基于化学反应区反应物与产物的状态量与反应进程量的关系，构造混合物状态方程的表达式，得到混合物声速、温度与压力等物理量;（2）根据混合单元的物理量. 为构造单元界面的物理量，需要研究设计高效、稳定的迭代方法，求解反应区的多相流的黎曼问题，从而得到数值通量;（3）研究网格移动策略. 结合移动网格方法以及反应区物理量剧烈变化的特点，构造一种高精度、高分辨率格式数值模拟方法，研究含化学反应复杂流体力学数值模拟方法;（4）将研究成果应用于钝感炸药的数值模拟，为工程实际问题提供有价值的信息。本项目的研究可以为多介质大变形流体力学的数值模拟开辟新的途径。

Detonation is an important part of physics in engineering, its production, development and propagation are complex procedure, because it involves material combination and complex of the equation of states, it is much difficult in numerical simulation, this project is the continuous work based on the previous one, which is in the great research plan, and so we mainly concerns the following problems: 1.To construct the physical variables of the mixed cell, to get the physical variables such as sound speed, pressure and temperature etc..2.To construct efficient solver by the new variables; especially the physical variables on the boundary of the cells by efficient iteration to get the fluxes on the boundary.3.To study the strategy of the movement of the meshes based on the distribution of the physical variables in the reactive regions, and so to get high resolutive solver;4.To study its application of the new methods achieved in this project, especially the detonation contains complex equation of states, such as JWL，and thus to provide some useful information for practice engineering.This project can explore a new method for multimaterial large distortion simulation