The investigation of natural super-cavitation flow behind three-dimensional cavitators: Full cavitation model

被引：37

作者：

Kadivar, Ebrahim ^{[1
]}

Kadivar, Erfan ^{[2
]}

Javadi, Khodayar ^{[3
]}

Javadpour, Seyyed Morteza ^{[4
]}

机构：

[1] Univ Duisburg Essen, Inst Ship Technol Ocean Engn & Transport Syst, D-47057 Duisburg, Germany

[2] Shiraz Univ Technol, Dept Phys, Shiraz 71555313, Iran

[3] Sharif Univ Technol, Aerosp Engn Dept, Flow Control Res Lab, Tehran, Iran

[4] Univ Sistan & Baluchestan, Dept Mech Engn, Zahedan 98135987, Iran

来源：

APPLIED MATHEMATICAL MODELLING | 2017年 / 45卷

关键词：

Cavitation; Super-cavitation; OpenFOAM; VOF; Full cavitation model; AXISYMMETRICAL CAVITATORS; SUPERCAVITATING FLOWS; NUMERICAL-SIMULATION; SHAPE OPTIMIZATION; PROJECTILE; TURBULENCE; DYNAMICS; VEHICLE; WATER;

D O I：

10.1016/j.apm.2016.12.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, natural super-cavitating flow around three different conical cavitators with wedge angles of 30 degrees, 45 degrees and 60 degrees is investigated. We apply the kappa-epsilon turbulence model and the volume of fluid (VOF) technique to numerically study the three-dimensional cavitating flow around the cavitators. The turbulence approach is coupled with a mass transfer model which is implemented into the finite-volume package. Simulations are performed for different cavitation numbers. Finally, the effects of some important parameters such as the cavitation index, inlet velocity, Froude number and wedge angle of cavitators on the geometrical characteristics of the super-cavities are discussed. Our numerical results are in good agreement with the experimental data. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：165 / 178

页数：14

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