TY - GEN
T1 - A coupled CFD-DEM model for fluid-particle flows with free surface
T2 - International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
AU - Jing, L.
AU - Kwok, C. Y.
AU - Leung, Y. F.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2015
Y1 - 2015
N2 - A coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) model is presented for fluid-particle flows with free fluid surface. The fluid flow is modeled by solving the locally averaged Navier-Stokes equations, and the particle motions are captured separately in the DEM. Fluid-particle interactions are taken into consideration by exchanging necessary information between the CFD and the DEM. A numerical solver, referred to as cfdemSolverVOF in this study, is developed to capture the dynamics of the free fluid surface within the CFD-DEM framework. This is achieved by applying an advection equation to solve the volume fraction of the liquid in each fluid cell, in the spirit of the Volume of Fluid (VOF) method. Different components of the developed numerical solver are verified and validated in the dam break case and sedimentation of particle tests. The numerical predictions agree well with the analytical/empirical solutions. © 2015 Taylor & Francis Group.
AB - A coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) model is presented for fluid-particle flows with free fluid surface. The fluid flow is modeled by solving the locally averaged Navier-Stokes equations, and the particle motions are captured separately in the DEM. Fluid-particle interactions are taken into consideration by exchanging necessary information between the CFD and the DEM. A numerical solver, referred to as cfdemSolverVOF in this study, is developed to capture the dynamics of the free fluid surface within the CFD-DEM framework. This is achieved by applying an advection equation to solve the volume fraction of the liquid in each fluid cell, in the spirit of the Volume of Fluid (VOF) method. Different components of the developed numerical solver are verified and validated in the dam break case and sedimentation of particle tests. The numerical predictions agree well with the analytical/empirical solutions. © 2015 Taylor & Francis Group.
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U2 - 10.1201/b17395-87
DO - 10.1201/b17395-87
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781138027077
VL - 1
T3 - Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
SP - 485
EP - 490
BT - Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
PB - Taylor and Francis - Balkema
Y2 - 1 September 2014 through 3 September 2014
ER -