固体推进剂裂纹对流燃烧流场的数值模拟

推进技术 ›› 1999, Vol. 20 ›› Issue (3): 36-39.

固体推进剂裂纹对流燃烧流场的数值模拟

李江,何国强,蔡体敏

西北工业大学航天工程学院;西北工业大学航天工程学院;西北工业大学航天工程学院

发布日期:2021-08-15

NUMERICAL ANALYSIS OF CONVECTIVE BURNING FLOW FIELD IN PROPELLANT CRACK

Coll.of Astronautics,Northwestern Polytechnical Univ.,Xi′an,710072;Coll.of Astronautics,Northwestern Polytechnical Univ.,Xi′an,710072;Coll.of Astronautics,Northwestern Polytechnical Univ.,Xi′an,710072

Published:2021-08-15

摘要/Abstract

摘要： 对固体推进剂裂纹内的对流燃烧流场进行了数值模拟，计算采用隐式ＴＶＤ格式求解有加质的二维粘性可压流的控制方程，并且考虑了侵蚀燃烧效应，计算获得了对流燃烧条件下裂纹内部压力分布，讨论了裂纹长度、高度对裂纹尖端压力的影响。

关键词: 推进剂药柱;推进剂燃烧;裂纹;数值仿真

Abstract: A numerical analysis was performed to study convective burning flow field in solid propellant crack.The implicit TVD scheme was used to solve the two dimensional Navier Stokes equation with gas injection and erosive burning.The pressure distribution inside the crack was obtained and the relation between the length and height of crack and the pressure in crack tip was also discussed.

Key words: Propellant grain;Propellant combustion;Crack;Numerical simulation

李江,何国强,蔡体敏. 固体推进剂裂纹对流燃烧流场的数值模拟[J]. 推进技术, 1999, 20(3): 36-39.