[PDF][PDF] Implementation of a moments model in OpenFOAM for polydispersed multiphase flows

JNE Carneiro, V Kaufmann… - Open Source CFD …, 2008 - researchgate.net
flows. The scope of this work is the further development of a novel approach to simulate
multiphase flows … through a concept using particle relaxation times and force balances. Closure …

Improve the performance of lattice Boltzmann method for a porous nanoscale transient flow by provide a new modified relaxation time equation

A Zarei, A Karimipour, AHM Isfahani, Z Tian - Physica A: Statistical …, 2019 - Elsevier
… Fluid flow in a nanochannel containing porous media was simulated in this study. … flow
domain was solved at a high Knudsen number (Kn) of 10 using a new equation for relaxation time

Thermal lattice Boltzmann method for multiphase flows

AL Kupershtokh, DA Medvedev, II Gribanov - Physical Review E, 2018 - APS
… for multiphase flowsrelaxation time and can be made sufficiently low if the value of τE is
close to 1/2 (Fig. 1). The passive scalar method for the LBM is usually used for single-phase flows

Velocity and concentration measurements in multiphase flows by NMR

PD Majors, RC Givler, E Fukushima - Journal of Magnetic Resonance …, 1989 - Elsevier
… noninvasive determination of flow-induced structure of a multiphase system is introduced …
perpendicular to the flow is selected, frequency encoding is performed in the flow direction, …

Iterative solution methods for modeling multiphase flow in porous media fully implicitly

S Lacroix, Y Vassilevski, J Wheeler, M Wheeler - SIAM Journal on Scientific …, 2003 - SIAM
We discuss several fully implicit techniques for solving the nonlinear algebraic system arising
in an expanded mixed finite element or cell-centered finite difference discretization of two- …

Effects of particle relaxation time and continuous-phase Reynolds number on particle deposition in vertical turbulent pipe flows

Y Yamamoto, T Okawa - Journal of nuclear science and technology, 2009 - Taylor & Francis
… The deposition coefficient was hence highest when the particles were intermediate in
size or in relaxation time. The calculated results indicated that the effect of the continuous-phase …

Turbulent dispersed multiphase flow

S Balachandar, JK Eaton - Annual review of fluid mechanics, 2010 - annualreviews.org
Turbulent dispersed multiphase flows are common in many engineering and environmental
applications. The stochastic nature of both the carrier-phase turbulence and the dispersed-…

A multiphase Godunov method for compressible multifluid and multiphase flows

R Saurel, R Abgrall - Journal of Computational Physics, 1999 - Elsevier
multiphase flows can be represented schematically as shown in Fig. 1. Of course, a multiphase
flow can be considered as a multifluid flow … closure relations and relaxation terms in order …

Fast computation of multiphase flow in porous media by implicit discontinuous Galerkin schemes with optimal ordering of elements

JR Natvig, KA Lie - Journal of Computational physics, 2008 - Elsevier
… advective multiphase flow in porous media in the absence of gravity and capillary forces. To
advance the solution one time … or the dynamics of the flow allow for large implicit time steps. …

An axisymmetric multiple-relaxation-time lattice Boltzmann scheme

W Xie - Journal of Computational Physics, 2015 - Elsevier
… to the single relaxation time used in the BGK model, the multiple-relaxation-time (MRT) …
various hydrodynamic modes and allows them to relax at different time scales. The MRT-LB …