A modified density based cavitation model for time dependent turbulent cavitating flow computations

Huang, Biao; Wang, Guoyu

doi:10.1007/s11434-011-4540-x

Cited by 20 publications

(7 citation statements)

References 10 publications

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“…Researchers have conducted many multiphase investigations using the general mixture cavitation model, where the effect of surface tension is not considered [9,10]. Recently, Huang and Wang [18] studied the water-air mixture flow, and Wu et al [19] investigated the water-vapor mixture flow using the level set method. Their studies confirmed that the level set method had advantages in capturing the interface between two phases.…”

Section: Resultsmentioning

confidence: 99%

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Analysis of ventilated cavitation around a cylinder vehicle with nature cavitation using a new simulation method

Luo

Wang

2015

Science Bulletin

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Section: Resultsmentioning

confidence: 99%

“…For better prediction of three-dimensional turbulent flow, a modified FBM turbulence model was applied [17,18]. For convenience, the solver of a commercial CFD code CFX coupled with the proposed method inserted by a user-defined file has been used for the present simulations.…”

Section: Computation Domain and Cfd Setupmentioning

confidence: 99%

Analysis of ventilated cavitation around a cylinder vehicle with nature cavitation using a new simulation method

Luo

Wang

2015

Science Bulletin

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“…and correlation between the net interface velocity u net I,n , and the flow field local velocity, u Local I,n , Huang and Wang in 2011 [31] described a new innovative solution of mass transfer rateṡ…”

Section: The Development Paths Of Numericalmentioning

confidence: 99%

Review of numerical models of cavitating flows with the use of the homogeneous approach

Niedźwiedzka¹,

Schnerr²,

Sobieski³

2016

Archives of Thermodynamics

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The focus of research works on cavitation has changed since the 1960s; the behaviour of a single bubble is no more the area of interest for most scientists. Its place was taken by the cavitating flow considered as a whole. Many numerical models of cavitating flows came into being within the space of the last fifty years. They can be divided into two groups: multifluid and homogeneous (i.e., single-fluid) models. The group of homogenous models contains two subgroups: models based on transport equation and pressure based models. Several works tried to order particular approaches and presented short reviews of selected studies. However, these classifications are too rough to be treated as sufficiently accurate. The aim of this paper is to present the development paths of numerical investigations of cavitating flows with the use of homogeneous approach in order of publication year and with relatively detailed description. Each of the presented model is accompanied by examples of the application area. This review focuses not only on the list of the most significant existing models to predict sheet and cloud cavitation, but also on presenting their advantages and disadvantages. Moreover, it shows the reasons which inspired present authors to look for new ways of more accurate numerical predictions and dimensions of cavitation. The article includes also the division of source terms of presented models based on the transport equation with the use of standardized symbols. Boldface lower-case letters refer to vectors while boldface capital letters and Greek lowercase letters refer to matrices.

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“…Recently, the CFD(Computational Fluid Dynamics) method is regarded as an effective method to numerically investigate the cavitating flow phenomenon [1][2][3]. Most of previous works are based on the homogeneous fluid approach and the relative motion between phases is neglected.…”

Section: Introductionmentioning

confidence: 99%

Eulerian two-phase modeling of cavitation for high-speed UUV using different turbulence models

Jia

Liu

et al. 2015

2015 IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems (CYBER)

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The cavitation will occur when the speed of UUV(Unmanned Underwater Vehicle) exceeds the threshold. The research of cavitation is significant for the high-speed UUV research. Two different turbulence models are respectively used to study the time-averaged and instantaneous cavitation two-phase flows in the present work. The Euler-Euler approach is used to describe the phase equations of the water and vapor. The Schnerr and Sauer model is used to describe the mass transfer due to the cavitation. Firstly, the time-averaged cavitation flow in a cylindrical model is simulated using the renormalization-group(RNG) kturbulence model. Good quantitative agreement with experimental data is obtained both for the vapor volume fraction and static pressure of different cavitation numbers. Next, transient computation is performed using the large eddy simulation(LES) with Smagorinsky subgrid scale model(SGS) to study the time-dependent cavitation flow of a hydrofoil model. The predicted transient cavitation behavior and cavities shedding in the hydrofoil model agree well with experimental observations. Thus, the LES can be effectively used for studying the cavity shedding and the instantaneous cavitation flow.

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A modified density based cavitation model for time dependent turbulent cavitating flow computations

Cited by 20 publications

References 10 publications

Analysis of ventilated cavitation around a cylinder vehicle with nature cavitation using a new simulation method

Analysis of ventilated cavitation around a cylinder vehicle with nature cavitation using a new simulation method

Review of numerical models of cavitating flows with the use of the homogeneous approach

Eulerian two-phase modeling of cavitation for high-speed UUV using different turbulence models

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