有隔板和无隔板的液体火箭发动机冷态全流场数值模拟

推进技术 ›› 1997, Vol. 18 ›› Issue (2): 16-20.

有隔板和无隔板的液体火箭发动机冷态全流场数值模拟

赵文涛,聂万胜,庄逢辰

国防科技大学航天技术系!长沙;410073;国防科技大学航天技术系!长沙;410073;国防科技大学航天技术系!长沙;410073

发布日期:2021-08-15

TOTAL COLD FLOW SIMULATION IN LIQUID ROCKET ENGINE WITH BAFFLES OR WITHOUT BAFFLE

Dept. of Aerospace Technology, National Univ. of Defence Technology, Changsha, 410073;Dept. of Aerospace Technology, National Univ. of Defence Technology, Changsha, 410073;Dept. of Aerospace Technology, National Univ. of Defence Technology, Changsha, 410073

Published:2021-08-15

摘要/Abstract

摘要： 针对液体火箭发动机燃烧室内有隔板和无隔板的情况，用数值模拟的方法对发动机冷态全流场进行了计算，探讨了燃烧室内有隔板时边界条件的处理、计算区域的离散以及隔板对流场参数的影响等问题，用欧拉坐标系下的Navier－Stokes方程组描述气相控制方程，通过数值模拟成功地对燃烧室内有隔板和无隔板的流场进行了数值仿真，表明了对隔板体的数值处理方法的可行性。

关键词: 液体推进剂火箭发动机;火箭发动机燃烧室;冷流;流动分布;数值仿真

Abstract: The object of this paper is to calculate total cold flow by using numerical method inliquid rocket engine combustion chamber with baffles or without baffle. The treating method ofboundary condition in combuster with baffles, the dispersing of calculated domain and the effect ofbaffle to flow are observed. Gas controlling equations are discribed under Euler coordinate. Liquidphase controlling equations are discribed under Lagrangian coordinate. The cold flows with baffles orwithout baffle are modeled success fully. The numerical treating method for baffles is advisable.

Key words: Liquid propellant rocket engine;Rocket engine combustion chamber;Cold flow;Flow distribution;Mathematical simulation

赵文涛,聂万胜,庄逢辰. 有隔板和无隔板的液体火箭发动机冷态全流场数值模拟[J]. 推进技术, 1997, 18(2): 16-20.