RANS computations of tip vortex cavitation

被引：3
|
作者：
Decaix, Jean [1 ]
Balarac, Guillaume [2 ,3 ]
Dreyer, Matthieu [4 ]
Farhat, Mohamed [4 ]
Muench, Cecile [1 ]
机构：
[1] Univ Appl Sci & Arts, Western Switzerland, 47 Route Rawyl, CH-1950 Sion, Switzerland
[2] Univ Grenoble Alpes, LEGI, F-38000 Grenoble, France
[3] CNRS, LEGI, F-38000 Grenoble, France
[4] Ecole Polytech Fed Lausanne, Lab Hydraul Machines, CH-1007 Lausanne, Switzerland
来源：
9TH INTERNATIONAL SYMPOSIUM ON CAVITATION (CAV2015) | 2015年 / 656卷
关键词：
GAP;
D O I：
10.1088/1742-6596/656/1/012183
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The present study is related to the development of the tip vortex cavitation in Kaplan turbines. The investigation is carried out on a simplified test case consisting of a NACA0009 blade with a gap between the blade tip and the side wall. Computations with and without cavitation are performed using a RANS modelling and a transport equation for the liquid volume fraction. Compared with experimental data, the RANS computations turn out to be able to capture accurately the development of the tip vortex. The simulations have also highlighted the influence of cavitation on the tip vortex trajectory.
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页数：4
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