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 …
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 …
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 …
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 …
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 …
This book focuses on the interplay between Eulerian and Lagrangian conservation laws for systems that admit physical motivation and originate from continuum mechanics. Ultimately …
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 …
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 …
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 …