固体火箭发动机真实流体输运系数的自动模拟

Automatic simulation of transporting parameters of real flow for solid rocket motors

关键词:  固体推进剂火箭发动机  输运系数+  流体动力学  数值仿真

Key words:  Solid propellant rocket engine  Transport coefficient~+  Fluid dynamics  Numerical simulation

摘要:

为缩短固体火箭发动机的研究周期、降低研究成本和揭示工作机理,需要对其工作过程进行三维数值仿真,但数值计算中许多物性参数如输运系数的确定存在困难,为此主要研究了适合于固体火箭发动机内高温高压下的多组分混合物输运系数的计算方法,并通过高级计算机语言管理数据库等方法实现自动计算,可准确快速地计算发动机内流过程中输运系数的变化,为真实模拟发动机的工作过程提供正确的物性参数。

Abstract:

In order to shorten research period, reduce cost and reveal mechanism of solid rocket motors, numerical simulation is usually necessary but some transporting parameters are difficultly acquired. Computational methods of transporting parameters of high temperature and high pressure polycomponent fluid in solid rocket motors are studied and programmed into the code. The code can exactly and quickly calculate several transporting parameters of internal flow fluid in solid rocket motors.