Citation:
Mahamadou Adama Maiga,Olivier Coutier-Delgosha,Gérard Bois.Numerical Study of the Transition Between Reentrant Jet and Twin Vortex Flow Regimes in Ventilated Cavitation[J].Journal of Marine Science and Application,2018,(1):38-44.[doi:10.1007/s11804-018-0014-8]
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Numerical Study of the Transition Between Reentrant Jet and Twin Vortex Flow Regimes in Ventilated Cavitation
Mahamadou Adama Maiga,Olivier Coutier-Delgosha,Gérard Bois.Numerical Study of the Transition Between Reentrant Jet and Twin Vortex Flow Regimes in Ventilated Cavitation[J].Journal of Marine Science and Application,2018,(1):38-44.[doi:10.1007/s11804-018-0014-8]
Info
- Title:
- Numerical Study of the Transition Between Reentrant Jet and Twin Vortex Flow Regimes in Ventilated Cavitation
- Author(s):
- Mahamadou Adama Maiga1; Olivier Coutier-Delgosha1; 2; Gérard Bois1
- Affilations:
- Keywords:
- Ventilated and natural cavitation; Instability; Reentrant jet and twin vortex regimes; CFD
- DOI:
- 10.1007/s11804-018-0014-8
- Abstract:
- Contrary to natural cavitation, ventilated cavitation is controllable and is not harmful. It is particularly used to reduce the drag of the hydraulic vehicles. The ventilated cavitation is characterized by various gas regimes. The mechanisms of ventilated cavitation are investigated in the present work with CFD based on a 2D solver. The attention is especially focused on the transition between the reentrant jet and twin vortex regimes. The results confirm that the product of ventilated cavitation number and Froude number is lower than 1 (σcFr < 1) in the twin vortex regime, while it is higher than 1 (σcFr > 1) in the reentrant jet regime, as reported in the literature. Further analysis shows that ventilated cavitation is significantly influenced by the natural cavitation number.
References:
Adama Maiga M, Chebli R, Coutier-Delgosha O (2013) Numerical study of the reentrant jet and twin vortex flow regimes in the ventilated cavitation. IOP Conference Series:Materials Science and Engineering, 52 062017
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Memo
- Memo:
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Received date:2016-09-26;Accepted date:2017-11-01。
Corresponding author:Mahamadou Adama Maiga, Mahamadou.ADAMAMAIGA@ensam.eu
