一维可燃气云燃烧与爆炸的数值模拟

Numerical Simulation of One-dimensional Deflagration and Explosion of Combustiable Cloud

碳氢燃料在空气中形成的可燃气云，点火后容易从燃烧发展为爆轰。本文分别用均匀能量释放模型与能量波模型模拟了可燃气云的能量释放；用高精度、高分辨率的ＴＶＤ格式对有限能量释放速率的一维可燃气云的流体力学守恒方程进行了数值求解，给出了流场压力分布曲线，讨论了两种能量释放模型中影响能量释放速率的主要因素。

Deflagration of combustible cloud formed by hydrocarbon fuels dispersed in air can easily be transfered to detonation.The homogeneous energy release model and energy wave model were applied respectively to simulate chemical energy release in this paper,TVD schme with high accuracy and high resolution was used to integrate one-dimensional conservative laws. The pressure distribution was got and factors that affect t he rate of energy release in two model were discussed in this paper.