极超音速成型装药射流头部激波作用下的真实气体效应分析

采用基于气体配分函数的高温平衡气体理论参数计算模型，考虑了高温情况下分子的离解和粒子的重新组合等带来的不同于理想气体的因素，研究了高达20马赫极超音速的成型装药射流头部真实气体效应的气动及热力学问题。采用不包含人工粘性的Godunov格式以及高温平衡气体理论参数计算模型编制了求解高超音速问题的Fortran程序。计算结果发现，高马赫下真实气体模型已经完全偏离了理想气体状态方程，真实气体效应导致了金属射流头部滞止区的厚度比运用理想气体状态方程得到的结果小的多，温度也低得多。

Analysis of Real Gas Effect Under the Action of Hypersonic Shaped Charge Jet Top Shock Wave

Considering the factors brought by molecule dissociation and particle reassembly under high temperature which are different from those of perfect gas,aerodynamics and thermodynamics of real gas effect above 20 Mach were researched by a model used to compute theoretical parameters of the high temperature equilibrium gas based on the gas assigned function.The Fortran program used to solve the hypersonic problems was compiled by the Godunov format without artificial viscocity and the model of theoretical param...