Fluid coupling in DEM simulation using Darcy's law: Formulation, and verification
Author(s) -
M. Goodarzi,
C. Y. Kwok,
L.G. Tham,
F. Chen
Publication year - 2013
Publication title -
aip conference proceedings
Language(s) - English
Resource type - Conference proceedings
eISSN - 1551-7616
pISSN - 0094-243X
DOI - 10.1063/1.4812136
Subject(s) - laminar flow , darcy's law , coupling (piping) , displacement (psychology) , mechanics , fluid dynamics , flow (mathematics) , stokes flow , computer science , geology , geotechnical engineering , porous medium , physics , engineering , mechanical engineering , porosity , psychology , psychotherapist
The fluid coupled-DEM has recently become a popular topic in the field of granular material simulation. In most simulations, the averaged Navier-Stokes equations are implemented to consider the fluid flow through particles. In this paper, a simple algorithm based on Darcy's law was discussed to avoid expensive computational effort of solving of the Navier-Stokes equations. The results of this approach were compared quantitatively with the well-known analytical solution of 1D seepage through a soil column as a fully coupled problem in geotechnical engineering. The comparison between the developed pore pressure and induced displacement with analytical values revealed that this algorithm is capable of simulating fluid-particle interaction accurately within the laminar regime.
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