Progress of computability of multi-scale interface problems in gas-liquid two-phase flow

被引：0

作者：

Zhang, Wenwei ^{[1
]}

Ke, Peng ^{[2
]}

Yang, Chunxin ^{[1
]}

Zhou, Chenglong ^{[1
]}

机构：

[1] School of Aeronautical Science and Engineering, Beihang University, Beijing

[2] School of Transportation Science and Engineering, Beihang University, Beijing

来源：

Huagong Xuebao/CIESC Journal | 2014年 / 65卷 / 12期

关键词：

Computability; Computational fluid dynamics; Gas-liquid two-phase flow; Interface; Multi-scale;

D O I：

10.3969/j.issn.0438-1157.2014.12.001

中图分类号：

学科分类号：

摘要：

Gas-liquid two-phase flow has complex interface structures with a wide range of spatial scales in the transient time. The multi-scale interface problems are related to various fields, such as chemical engineering, nuclear safety, and so on. Computability of these problems is one of the research priorities. This paper analyzes basic models dealing with the discontinuity of phase interfaces in the Eulerian reference frame, and describes the influence relationship between turbulent simulation methods and interfaces. The difficulties of computability are analyzed for two types of multi-scale problems: scale distribution of interfaces in dispersed flows and cross-scale of interfaces in mixed flow. Two factors including the scale for computational grid and the loss of geometry and physical boundaries are concluded. The computing methods and typical applications in cross-scale of interfaces in mixed flow are summarized. The strategies and trends of the research on those multi-scale problems are proposed, providing useful guides for the research. ©, 2014, Chemical Industry Press. All right reserved.

引用

页码：4645 / 4654

页数：9

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