表面张力贮箱推进剂管理装置瞬变环境的模拟计算

SIMULATING CALCULATION FOR THE TRANSIENT ENVIRONMENT OF THE SURFACE TENSION PROPELLANT ACQUISITION/EXPULSION DEVICES IN SATELLITE PROPELLANT TANK

本文以卫星表面张力贮箱推进剂管理装置所经历的瞬变工况为工程背景,运用瞬变流理论对贮箱供液管系内梳体进行了动态模拟,文中从描述具有侧向流入的网筛通道内流动的运动方程和连续方程出发,采用特征线法,通过计算机求解出阀门动作在管系内任一点引起的水头响应.

A transient flow process in acquisition/expulsion devices( pipelies) of a surface tension propellant tank for satellite is simulated by use of transient flow theory. Based on the equations of motion and continuity to describe the lateral flow and the capillary action in screen pipes, the hydraulic head response at any point in screen -walled pipelines resulting from the action of the valve is computed with the method of characteristics.