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Accurate tangential velocities for solid fluid coupling

Avi Robinson-Mosher, R. Elliot English, Ronald Fedkiw
2009 Proceedings of the 2009 ACM SIGGRAPH/Eurographics Symposium on Computer Animation - SCA '09  
We propose a novel method for obtaining more accurate tangential velocities for solid fluid coupling.  ...  The coupling between the solid and the fluid can either be one-way with kinematic solids or fully two-way coupled.  ...  We have presented a method for obtaining more accurate tangential velocities in a fluid system which may be one or two-way coupled to the solid.  ... 
doi:10.1145/1599470.1599500 dblp:conf/sca/Robinson-MosherEF09 fatcat:euizakt7xrd57e4mpiwyx22n2y

A 3D Simulation of a Moving Solid in Viscous Free-Surface Flows by Coupling SPH and DEM

Liu-Chao Qiu, Yi Liu, Yu Han
2017 Mathematical Problems in Engineering  
The fluid and the solid phases are coupled through Newton's third law of motion.  ...  The results indicate that the method presented in this paper is accurate and is capable of modelling fluid-solid interactions with a free-surface.  ...  Acknowledgments The authors are grateful for funding from the National Natural Science Foundation of China (Grant nos. 11172321  ... 
doi:10.1155/2017/3174904 fatcat:5tenlxq4dfhylneywd4vsva77q

Computation of the Beavers-Joseph slip coefficient for coupled Stokes/Darcy problems [article]

Paula Strohbeck, Elissa Eggenweiler, Iryna Rybak
2021 arXiv   pre-print
Physically consistent coupling conditions at the fluid-porous interface with correctly determined effective parameters are necessary for accurate mathematical modeling of various applications described  ...  , the balance of normal forces and the Beavers-Joseph condition on the tangential component of velocity.  ...  Fluid flows through such coupled systems are highly interface driven, therefore, the correct choice of coupling conditions and effective model parameters is crucial for accurate numerical simulation of  ... 
arXiv:2106.15556v1 fatcat:5govcylxwzctdjrngvbbp5cbhq

Coupled DEM-CFD Model to Predict the Tumbling Mill Dynamics

K. Mayank, M. Malahe, I. Govender, N. Mangadoddy
2015 Procedia IUTAM  
description for the fluid by CFD approach.  ...  The computational model presented in this work is a three phase approach for the tumbling mill that combines a particle description for the solids modelled by the Discrete Element Method, and the continuum  ...  The coupled DEM-CFD model which accounts for the effects of solid on the fluid gives a better comparison .  ... 
doi:10.1016/j.piutam.2015.04.020 fatcat:znampel64nfaleyp3xfz4fpzga

Realtime Two-Way Coupling of Meshless Fluids and Nonlinear FEM

Lipeng Yang, Shuai Li, Aimin Hao, Hong Qin
2012 Computer graphics forum (Print)  
Based on a predictor-corrector scheme for both velocity and position, different normal and tangential conditions can be realized even for shell-like thin solids.  ...  To accurately model the coupling, we generate proxy particles over the boundary of deformable solids to facilitate the interaction with fluid particles, and develop an efficient method to distribute the  ...  We thank Qing Xia for writing the rendering code and helping the video production. We also thank the anonymous reviewers for their constructive critiques.  ... 
doi:10.1111/j.1467-8659.2012.03196.x fatcat:qzrg533jtbesdpz7rl5jkf2eci

Fluidization of spherocylindrical particles

Vinay V. Mahajan, Tim M.J. Nijssen, Barry W. Fitzgerald, Jeroen Hofman, Hans Kuipers, Johan T. Padding, F. Radjai, S. Nezamabadi, S. Luding, J.Y. Delenne
2017 EPJ Web of Conferences  
A coupled computational fluid dynamics (CFD) and discrete element method (DEM) approach is a popular way to study such flows at a particle scale.  ...  Moreover, most studies in literature use inaccurate drag laws because accurate laws are not readily available.  ...  Acknowledgements We thank the European Research Council (ERC) for financial support, under its Consolidator Grant scheme, contract no. 615906 (nonSphereFlow).  ... 
doi:10.1051/epjconf/201714006019 fatcat:hbg2zwcjtjdmzca3llqhyu5erm

A fast variational framework for accurate solid-fluid coupling

Christopher Batty, Florence Bertails, Robert Bridson
2007 ACM Transactions on Graphics  
In addition, we extend the framework with a new boundary condition for free-surface flow, allowing fluid to separate naturally from solids.  ...  We provide several examples of efficient fluid-solid interaction and rigid body coupling with sub-grid cell flow.  ...  Houston et al. [2003] later introduced the constrained velocity extrapolation method to further improve on this, extrapolating the tangential component of fluid velocity into solids accurately and thus  ... 
doi:10.1145/1276377.1276502 fatcat:36lsfsxtnbfc7dvlkxibagz5wy

A fast variational framework for accurate solid-fluid coupling

Christopher Batty, Florence Bertails, Robert Bridson
2007 ACM Transactions on Graphics  
In addition, we extend the framework with a new boundary condition for free-surface flow, allowing fluid to separate naturally from solids.  ...  We provide several examples of efficient fluid-solid interaction and rigid body coupling with sub-grid cell flow.  ...  Houston et al. [2003] later introduced the constrained velocity extrapolation method to further improve on this, extrapolating the tangential component of fluid velocity into solids accurately and thus  ... 
doi:10.1145/1239451.1239551 fatcat:7elvjz3sjbfllltqqd3tx3oxv4

A fast variational framework for accurate solid-fluid coupling

Christopher Batty, Florence Bertails, Robert Bridson
2007 ACM SIGGRAPH 2007 papers on - SIGGRAPH '07  
In addition, we extend the framework with a new boundary condition for free-surface flow, allowing fluid to separate naturally from solids.  ...  We provide several examples of efficient fluid-solid interaction and rigid body coupling with sub-grid cell flow.  ...  Houston et al. [2003] later introduced the constrained velocity extrapolation method to further improve on this, extrapolating the tangential component of fluid velocity into solids accurately and thus  ... 
doi:10.1145/1275808.1276502 fatcat:xqxdoxu2qnferds2w3e2gufbkq

Particle Flow Simulation Based on Hybrid IMB-DEM-LBM Approach with New Solid Fraction Calculation Scheme

Ri Zhang, Hyeong-Joo Kim, Peter Rey Dinoy
2021 Applied Sciences  
In this study, LBM fluid is simulated on the regular Eulerian grid and Lagrangian particle motion is governed by DEM while IMB couples the two algorithms.  ...  A new coupling method, immersed moving boundary–discrete element method–lattice Boltzmann method (IMB-DEM-LBM), is proposed to simulate particle flow for application in soil mechanics or coastal engineering  ...  Since solid fraction is a critical variable for hydrodynamic force calculation, several papers have focused on accurate solid fraction calculation algorithm. Owen et al.  ... 
doi:10.3390/app11083436 fatcat:fkkjo2lssjfebkkoglg3bazksm

A comprehensive study of coupled LBM-DEM with immersed moving boundary [article]

G. C. Yang, L. Jing, C. Y. Kwok, Y. D. Sobral
2018 arXiv   pre-print
For a flow with high Reynolds number, a turbulence model shall be incorporated so that the effects of unresolved small eddies can be captured in an accurate and efficient manner.  ...  By choosing a small relaxation time greater than the lower limit 0.5, a small fluid compressibility error and a strong coupling between fluids and particles can be achieved, at the cost of computational  ...  By using LBM, no iteration is required to solve for the fluid velocity field and pressure field.  ... 
arXiv:1809.07008v1 fatcat:sve6fhb3wzdwhgpazpdkttzkoa

Effects of Mass-Loading on Performance of the Cyclone Separators [chapter]

Vikash Kumar, Kailash Jha
2022 Computational Fluid Dynamics [Working Title]  
The two-way coupled simulations show an increase in the collection efficiency from 62% to 70% on increasing the solid loadings from 0.05 to 0.3 with marginal increase in pressure drop of 4.8%.  ...  A fine grid is solved using the Large Eddy Simulations to capture the accurate physical phenomena.  ...  Mesra, for his valuable time and help he put in this study.  ... 
doi:10.5772/intechopen.102090 fatcat:vv4kmzxyareitmroartwly22ym

Computational Fluid Dynamics (CFD) and Discrete Element Method (DEM) Applied to Centrifuges [chapter]

Xiana Romani, Lars Egmont, Hermann Nirschl
2012 Applied Computational Fluid Dynamics  
For example, at the inlet of a continuous centrifuge, high shear rates and intensive mixing occur due to the high tangential velocity gradient.  ...  Hence the simulation of the multiphase flow in centrifuges requires a coupling of the DEM with computational fluid dynamics (CFD).  ...  Nevertheless the axial fluid profiles do not depict the true case accurately.  ... 
doi:10.5772/27176 fatcat:z4nnpxfcpvggvnrhpdhvt4tfca

Numerical Simulation of Particle Separation in PM10 Cyclone Separator

Jing-lu DAI, Yi-ping LU, Song-song ZHANG, Guo-li QI, Ya-qing LI
2017 DEStech Transactions on Engineering and Technology Research  
the accurate measurement of particle concentration.  ...  ICEM was adopted to mesh, and gas-solid two-phase flow of the separator was studied based on Reynolds stress model and the stochastic model.  ...  The study on characteristic of gas-solid two-phase flow in PM 10 cyclone separator is used by Reynolds stress model and stochastic trajectory model of coupling between phases.  ... 
doi:10.12783/dtetr/tmcm2017/12638 fatcat:z6zguzajqnhzzoy55izbhm3ime

Staggered meshless solid-fluid coupling

Xiaowei He, Ning Liu, Guoping Wang, Fengjun Zhang, Sheng Li, Songdong Shao, Hongan Wang
2012 ACM Transactions on Graphics  
In the simulations, the method handles the fluid and solid in a unified meshless manner and generalizes the formulations for computing the viscous and pressure forces.  ...  Besides, explicit collision handling for the fluid and solid is avoided. The method is easy to implement and can be extended from the standard SPH algorithm in a straightforward manner.  ...  Acknowledgements We would like to thank anonymous reviwers for their valuable advices on improving the paper. Support for authors in IS-CAS came from the National Basic Research Program of China  ... 
doi:10.1145/2366145.2366168 fatcat:l4tlpkex3ze4hlbrjl6widtfcu
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