A Novel Numerical Method for Turbulent, Two-Phase Flow

被引：0
|
作者：
Pecenko, A. [1 ]
Kuerten, J. G. M. [1 ]
机构：
[1] Eindhoven Univ Technol, Dept Mech Engn, NL-5600 MB Eindhoven, Netherlands
来源：
TURBULENCE AND INTERACTIONS | 2010年 / 110卷
关键词：
NONUNIFORM SYSTEM; FREE ENERGY;
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A novel approach to the simulation of isothermal, turbulent two-phase (liquid/vapour) flow is presented. The two-phase nature of the flow is modeled by means of a diffuse-interface concept and of the Korteweg tensor of capillary forces at the interface, so that a single system of compressible Navier-Stokes equations can be written for the whole flow domain. A Van der Waals equation of state is also included to account for the variation of pressure with density at the given value of temperature. After explanation of a stable numerical method, results of a classic benchmark problem are shown. Next, subgrid terms related to the nonlinear pressure and capillary terms are studied by means of an a priori analysis based on DNS results, and a subgrid model for these terms is proposed.
引用
收藏
页码：279 / 285
页数：7
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