Three-dimensional Numerical Simulation of Vertical Vortex at Hydraulic Intake

被引：20
|
作者：
Chen, Yunliang [1 ]
Wu, Chao [1 ]
Wang, Bo [1 ]
Du, Min [1 ]
机构：
[1] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China
来源：
2012 INTERNATIONAL CONFERENCE ON MODERN HYDRAULIC ENGINEERING | 2012年 / 28卷
关键词：
Vertical vortex; Three-dimensional numerical simulation; RNG k-epsilon model; Standard k-epsilon model; VOF method;
D O I：
10.1016/j.proeng.2012.01.682
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To investigate an effective numerical model for simulating vertical vortex, turbulent models with VOF method are compared. The effects of the turbulent kinetic energy, the turbulent dissipation rate and the turbulent viscosity on formation and development of vertical vortex are analyzed. It shows that RNG k-epsilon model is more suitable than standard k-epsilon model to the rapidly strained and great curving streamline flows. The calculated spiral flow agrees with the laboratory tests. It may be helpful to the study on generating mechanism of vertical vertex.
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页码：55 / 60
页数：6
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