喷管化学反应粘性流场的数值模拟

推进技术 ›› 1998, Vol. 19 ›› Issue (5): 20-24.

喷管化学反应粘性流场的数值模拟

张化照,梁国柱,王慧玉

北京航空航天大学宇航学院;北京航空航天大学宇航学院;北京航空航天大学宇航学院

发布日期:2021-08-15
基金资助:
“八六三”基金资助项目

NUMERICAL SIMULATION OF REACTING VISCOUS FLOW IN NOZZLE

School of Astronautics,Beijing Univ.of Aeronautics and Astronautics,Beijing,100083;School of Astronautics,Beijing Univ.of Aeronautics and Astronautics,Beijing,100083;School of Astronautics,Beijing Univ.of Aeronautics and Astronautics,Beijing,100083

Published:2021-08-15

摘要/Abstract

摘要： 用时间相关法的显格式求解氢氧发动机喷管的粘性化学反应流动，采用６种组分，８个基元反应有限速率的化学反应模型，湍流模型采用Ｂａｌｄｗｉｎ－Ｌｏｍａｘ代数湍流模型，得到流动参数和产物的质量分数在喷管流场中的分布。计算结果表明，采用显格式方法求解喷管化学反应粘性流动是可行的。

关键词: 氢氧发动机;发动机喷管;反应动力学;粘性流;数值仿真

Abstract: The viscous reacting flowfield in the O 2/H 2 rocket engine nozzle was computed by using time depenent explicit difference scheme.The combustion process was modeled by a 6 specice,8 step finite rate chemical model,and the Baldwin Lomax algebric turbulent model was adopted.The distribution of flow parameters and mass fractions of products were presented.The results show that the explicit difference scheme is feasible in calculating the viscous reacting flows

Key words: Hydrogen oxygen engine;Engine nozzle;Reaction kinetics;Viscous flow;Numerical simulation

张化照,梁国柱,王慧玉. 喷管化学反应粘性流场的数值模拟[J]. 推进技术, 1998, 19(5): 20-24.