Preconditioned Navier-Stokes method for two-phase flows with application to cavitation prediction

被引：0

作者：

Kunz, Robert F. ^{[1
]}

Boger, David A. ^{[1
]}

Stinebring, David R. ^{[1
]}

Chyczewski, Thomas S. ^{[1
]}

Lindau, Jules W. ^{[1
]}

Gibeling, Howard J. ^{[1
]}

Venkateswaran, Sankaran ^{[1
]}

Govindan, T.R. ^{[1
]}

机构：

[1] Pennsylvania State Univ, University Park, United States

来源：

Annales de Chimie: Science des Materiaux | 2000年 / 25卷 / 03期

关键词：

Algorithms - Cavitation - Computational fluid dynamics - Differential equations - Eigenvalues and eigenfunctions - Navier Stokes equations - Phase separation - Volume fraction;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An implicit algorithm for the computation of viscous two-phase flows is presented in this paper. The baseline differential equation system is the multi-phase Navier-Stokes equations, comprised of the mixture volume, mixture momentum and constituent volume fraction equations. Though further generalization is straightforward, a three-species formulation is pursued here, which separately accounts for the liquid and vapor (which exchange mass) as well as a non-condensable gas field. The implicit method developed here employs a dual-time, preconditioned, three-dimensional algorithm, with multi-block and parallel execution capabilities. Time-derivative preconditioning is employed to ensure well-conditioned eigenvalues, which is important for the computational efficiency of the method. Special care is taken to ensure that the resulting eigensystem is independent of the density ratio and the local volume fraction, which renders the scheme well-suited to high density ratio, phase-separated two-fluid flows characteristic of many cavitating and boiling systems. To demonstrate the capabilities of the scheme, several two- and three-dimensional examples are presented.

引用

页码：849 / 875