Global weak solution to the viscous two-fluid model with finite energy

A Vasseur, H Wen, C Yu - Journal de Mathématiques Pures et Appliquées, 2019 - Elsevier
In this paper, we prove the existence of global weak solutions to the compressible two-fluid
Navier–Stokes equations in three dimensional space. The pressure depends on two …

Global existence of weak solutions for a viscous two-phase model

S Evje, KH Karlsen - Journal of Differential Equations, 2008 - Elsevier
The purpose of this paper is to explore a viscous two-phase liquid–gas model relevant for
well and pipe flow. Our approach relies on applying suitable modifications of techniques …

The WAF scheme for the isentropic drift-flux model of compressible two-phase flows

S Ouffa, D Zeidan, D Seba - Computers & Fluids, 2021 - Elsevier
This paper focuses on the extension of the Weighted Average Flux (WAF) scheme for the
numerical simulation of two-phase gas–liquid flow by imposing velocity equilibrium and …

A hierarchy of relaxation models for two-phase flow

H Lund - SIAM Journal on Applied Mathematics, 2012 - SIAM
A hierarchy of relaxation two-phase flow models is considered, formulated as hyperbolic
relaxation systems with source terms. The relaxation terms cause volume, heat, and mass …

[PDF][PDF] Global weak solutions for a viscous liquid-gas model with singular pressure law

S Evje, KH Karlsen - Commun. Pure Appl. Anal, 2009 - ux.uis.no
We study a viscous two-phase liquid-gas model relevant for well and pipe flow modelling.
The gas is assumed to be polytropic whereas the liquid is treated as an incompressible fluid …

A simplified two-phase flow model using a quasi-equilibrium momentum balance

UJF Aarsnes, A Ambrus, F Di Meglio… - International Journal of …, 2016 - Elsevier
We propose a simple model of two-phase gas–liquid flow by imposing a quasi-equilibrium
on the mixture momentum balance of the classical transient drift-flux model. This reduces the …

[图书][B] Numerical methods for Eulerian and Lagrangian conservation laws

B Després - 2017 - books.google.com
This book focuses on the interplay between Eulerian and Lagrangian conservation laws for
systems that admit physical motivation and originate from continuum mechanics. Ultimately …

A Robust and accurate Riemann solver for a compressible two-phase flow model

S Kuila, TR Sekhar, D Zeidan - Applied Mathematics and Computation, 2015 - Elsevier
In this paper we analyze the Riemann problem for the widely used drift-flux two-phase flow
model. This analysis introduces the complete information that is attained in the …

The Riemann problem for a hyperbolic model of two-phase flow in conservative form

D Zeidan - International Journal of Computational Fluid Dynamics, 2011 - Taylor & Francis
This article is to continue the present author's work (International Journal of Computational
Fluid Dynamics (2009) 23 (9), 623–641) on studying the structure of solutions of the …

The approximate Riemann solver of Roe applied to a drift-flux two-phase flow model

T Flåtten, ST Munkejord - ESAIM: Mathematical Modelling and …, 2006 - cambridge.org
We construct a Roe-type numerical scheme for approximating the solutions of a drift-flux two-
phase flow model. The model incorporates a set of highly complex closure laws, and the …