用改进的 SIMPLE 方法求解喷管流动

推进技术 ›› 1998, Vol. 19 ›› Issue (3): 48-51.

用改进的 SIMPLE 方法求解喷管流动

孙再庸,何洪庆,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
基金资助:
国家自然科学基金,国家教委博士学科点专项基金,国家“八六三”计划资助项目

SOLVING VISCOUS FLOW IN NOZZLE USINGIMPROVED SIMPLE ALGORITHM

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： 应用ＳＩＭＰＬＥ方法求解全速度流动问题，这一方法是以速度分量、压力和温度作为原始变量，密度通过状态方程求得，压力对密度的影响隐式处理。利用此方法求解了粘性喷管流动，并与试验结果进行了比较，吻合较好。

关键词: 可压缩流;粘性流;喷管气流;数值计算

Abstract: The SIMPLE method has been extended to calculate the flow at all speedsThe primary variables are the cartesion velocity components,the pressure and the temperatureThe density is linked to the pressure via an equation of stateThe influence of the pressure on the density in the case of compressible flows is implicitly in corporated into the extended SIMPLE algorithmThe method is applied in a viscous nozzle flowThe results are in accord with the experimental data of Mason

Key words: Compressible flow;Viscous flow;Nozzle flow;Numerical calculation

孙再庸,何洪庆,蔡体敏. 用改进的 SIMPLE 方法求解喷管流动[J]. 推进技术, 1998, 19(3): 48-51.