一种全速域的计算方法及其应用

王强; 姜彭

doi:10.3879/j.issn.1000-0887.2016.06.002

一种全速域的计算方法及其应用

doi: 10.3879/j.issn.1000-0887.2016.06.002

王强¹,
姜彭²

¹中北大学机械与动力工程学院, 太原 030051;²哈尔滨工业大学能源科学与工程学院, 哈尔滨 150001

基金项目: 中国博士后科学基金（2011M500545）

详细信息

作者简介:
王强（1982—），男，副教授，博士，硕士生导师(通讯作者. E-mail: chuangwang_w@163.com).

中图分类号: O354.9
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- 被引次数: 0
出版历程
- 收稿日期: 2015-11-11
- 修回日期: 2016-01-13
- 刊出日期: 2016-06-15

A Modified Numerical Method for Arbitrary Mach Number Flows Based on the Preconditioning Technique

WANG Qiang¹,
JIANG Peng²

¹School of Mechanical and Power Engineering, North University of China, Taiyuan 030051, P.R.China;²School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, P.R.China

Funds: China Postdoctoral Science Foundation（2011M500545）

摘要

摘要: 针对原可压缩流动求解器不能用于低速不可压缩流动预测的缺点，采用预处理技术对控制方程特征系统、隐式求解方法进行修正，并采用预处理修正的AUSM⁺up格式离散对流项.采用修正后的求解器对无粘鼓包流动、顶盖驱动粘性方腔流动以及Laval(拉瓦尔)喷管流动等算例进行数值仿真，并将数值仿真结果与基准解进行对比.结果表明将预处理技术应用于全速域流动问题的求解是可行的，经预处理修正后的求解器能够用于低速、亚音速、跨音速以及超音速流动问题的求解.
- 计算流体力学 /
- 全速域流动 /
- 预处理技术 /
- 时间相关法
Abstract: The preconditioning technique was applied to modify the existent LU-SGS solver for compressible flows, which was unsuitable for the prediction of low-speed incompressible flows. The preconditioning modification included treatment of the eigen system of the governing equations, improvement of the implicit solving method and discretization of the convection terms with the low-diffusion difference scheme and the AUSM+-up scheme. The modified solver was applied to numerical simulations of inviscid bump flows, lid-driven square cavity viscous flows and Laval nozzle flows. The comparison between the present results and those in the previous literatures proves the feasibility of the preconditioning-modified numerical method in the simulation of arbitrary Mach number flows, including the low-speed, the subsonic, the transonic and the supersonic invicid or viscous flows.
- computational fluid dynamics /
- arbitrary Mach number flow /
- preconditioning technique /
- time-dependent method

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参考文献(10)

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