Journal
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
Volume 218, Issue -, Pages 16-26Publisher
ELSEVIER
DOI: 10.1016/j.jnnfm.2015.01.010
Keywords
Discrete element method; Smoothed particle hydrodynamics; Magnetorheological fluid; Shear stress; Numerical simulation; Drag model
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Funding
- European Commission [228398]
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Simulations of magnetorheological fluids are performed with different models for the hydrodynamic drag law. The shear stress predictions from two coupled discrete element - smoothed particle hydrodynamics models with different drag laws are compared to pure discrete element simulations for a wide range of Mason numbers. The discrete element model has a higher computational efficiency but the treatment of the hydrodynamic drag force involves some rough approximations. Based on the results of this study, a criterion is proposed for the applicability of the pure discrete element model in the simulation of sheared magnetorheological suspensions. (C) 2015 Elsevier B.V. All rights reserved.
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