液体火箭发动机供应系统水击特性仿真

Simulation of water hammer characteristics of liquid rocket engine supply system

管路结构设计是液体火箭发动机供应系统重要工作之一。以某液体火箭发动机供应系统的管路结构为分析对象,为了降低水击压力,设计“T”型三通接头与“Y”型三通接头、半环形管路与环形管路结构,进行水击特性仿真分析,结果表明环形管路系统对降低水击压力效果明显,并与试验数据进行对比,仿真结果与试验结果基本吻合。

Pipeline structure design is an important work of liquid rocket engine supply system.This paper takes the pipeline structure of a liquid rocket engine supply system as the research object.In order to reduce the water hammer pressure,“T”and“Y”type three-way junction,semi-annular pipeline and annular pipeline were designed,and simulation analysis of water hammer characteristics was carried out.The results show that the annular pipeline system has obvious effect on reducing water hammer pressure.The simulation results are basically consistent with the experimental results.