Numerical Study on Ventilated Supercavitation Reaction to Gas Supply Rate

Guo Hua Gao; Jing Zhao; Fei Ma; Wei Dong Luo

doi:10.4028/www.scientific.net/AMR.418-420.1781

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Numerical Study on Ventilated Supercavitation Reaction to Gas Supply Rate

Abstract:

In the present investigation, a computational fluid dynamics technique is used to investigate the ventilated supercavitation reaction to the change of gas supply rate. Detached eddy simulation, a hybrid RANS-LES method is used for turbulence modeling, and improved Singhal’s model is used to simulate cavitation process. Simulation results show that the change of cavity shape is lagging behind that of gas supply. When gas supply is shut, cavities experience a series fluctuation before reaching equilibrium state, if natural cavitation numbers are large; in contrast, they are monotone decreasing under small natural cavitation numbers.

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Periodical:

Advanced Materials Research (Volumes 418-420)

Pages:

1781-1785

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.418-420.1781

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Online since:

December 2011

Authors:

Guo Hua Gao, Jing Zhao, Fei Ma, Wei Dong Luo

Keywords:

Computational Fluid Dynamics (CFD), Gas Supply Rate, RANS-LES Model, Ventilated Supercavitation

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References

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