基于双时间步长-预处理算法的水下多组分空泡流场求解方法研究

蔡卫军; 钱建平; 杨 飚; 尹韶平

doi:10.11993/j.issn.1673-1948.2007.03.005

基于双时间步长-预处理算法的水下多组分空泡流场求解方法研究

doi: 10.11993/j.issn.1673-1948.2007.03.005

中国船舶重工集团公司第705研究所,陕西西安 710075

详细信息

作者简介:
蔡卫军(1976- )，博士,从事水下多相流的数值模拟研究.

中图分类号: TJ630.1; O359
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出版历程
- 收稿日期: 2007-05-10
- 修回日期: 2007-05-16
- 刊出日期: 2007-06-30

Preconditioned Dual-time Stepping Method and Its Application to Multi-component Flow with Cavitation

The 705 Research Institute,China Shipbuilding Industry Corporation, Xi′an 710075, China

摘要

摘要: 采用一种基于双时间步长-预处理算法的空化流场求解方法，用于对水下多组分(包含水、水蒸汽、空气等)空泡流场进行分析研究。在控制方程源项中包含了多组分化学反应、水- 水蒸汽之间的相变等过程，并采用多块结构化网格、Roe空间离散格式对控制方程组进行离散求解,给出了典型算例,结果表明，该算法可准确地捕捉到自然及通气空泡流场中的主要特征，适用于包含多组分、且同时具有不可压缩性和可压缩性的水下空泡流场求解。
- 双时间步长 /
- 预处理 /
- 空化现象
Abstract: A preconditioned dual-time stepping method is developed for the multi-component flow regimes including the incompressible bulk liquid flow, low Mach number compressible vapor flow and transonic/supersonic mixture flow with cavitations. The governing equations involving liquid-gas phase change and/or gas phase chemical reaction as source terms are discretized with a multi-block structured grid via upwind flux difference scheme with flux limits(Roe-type). Several representative solutions are obtained to demonstrate the feasibility of the presented method.
- dual-time stepping /
- precondition /
- cavitation

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参考文献(14)

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