用TVD方法模拟喷管内的横流流场

推进技术 ›› 1997, Vol. 18 ›› Issue (5): 53-56.

用TVD方法模拟喷管内的横流流场

徐旭,张振鹏

北京航空航天大学宇航学院!北京;100083;北京航空航天大学宇航学院!北京;100083

发布日期:2021-08-15
基金资助:
国家“八六三”基金

THE NUMERICAL SIMULATION OF CROSS-FLOW IN NOZZLE BY USING A TVD SCHEME

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： 采用显式的TVDMacCormack格式，并结合Baldwin－Lomax的代数湍流模型和低雷诺数两方程k－ε模型分别求解了喷管内横流流场的二维N－S方程，得到了与理论分析结果相近似的流场结构图谱，并对代数湍流模型和两方程模型得到的结果进行了比较，表明运用两方程模型所得到的结果稍好于代数模型。

关键词: 喷管气流;流动分布;纳维尔-斯托克斯方程;TVD格式+;湍流模型

Abstract: A time-split explicit TVD MacCormack scheme is used to solve the two-dimensionalN-S equations of cross-flow in rocket motor nozzle. Both the algebraic turbulence model of Baldwinand Lomax and the low Reynold number two-equation k-ε turbulence model of Lam and Bremhorstare used in this procedure. The results are compared with each rother and show that the k-ε model cangive slightly better solutions than the algebraic one.

Key words: Nozzle flow;Flow distribution;N-S equations;TVD scheme~+;Turbulence model

徐旭,张振鹏. 用TVD方法模拟喷管内的横流流场[J]. 推进技术, 1997, 18(5): 53-56.