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Comparison of analytical and numerical solutions of mean flow fields in solid rocket motors
Author(s): WANG Ge, FANG Lei, GAO Ye, XUE Ruo-jun
Pages: 225-
229
Year: 2007
Issue:
3
Journal: JOURNAL OF PROPULSION TECHNOLOGY
Keyword: 内流场+; 渗透壁+; 注入; 燃面减退+;
Abstract: 对具有燃面减退的固体火箭发动机燃烧室头部的内流场进行了研究.以二维轴对称流动的不可压N-S方程为基础,介绍了解析方法,包括运用空间相似与时间相似原理简化N-S方程以及运用摄动法求解高阶微分方程.之后采用FLUENT软件中的动网格技术,对该问题进行了数值模拟.主要研究了在不同的燃面减退速率及注入雷诺数下,燃烧室头部区域的速度场,压力场及剪应力的分布.通过解析结果与数值结果的比较,发现两者基本吻合,增强了解析解的可信程度.
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