Authors
Nathaniel Trask, Martin Maxey, Kyungjoo Kim, Mauro Perego, Michael L Parks, Kai Yang, Jinchao Xu
Publication date
2015/6/1
Journal
Computer Methods in Applied Mechanics and Engineering
Volume
289
Pages
155-178
Publisher
North-Holland
Description
Smoothed Particle Hydrodynamics (SPH) has successfully been used to study a variety of cases involving nearly inviscid flows where conservation properties allow for good physical approximation despite poor theoretical approximation properties of differential operators. When used to study unsteady low Reynolds number flow with large dissipation, conservation alone cannot ensure quality of approximation and the traditional approach is inconsistent. An alternative formulation has recently become popular making use of an approximate splitting scheme to ensure a divergence-free velocity field. However, this scheme relies on an inconsistent discretization of the Laplacian that diverges as particles become disordered under flow. We present an incremental pressure correction scheme and combination of existing differential operator renormalizations that are able to achieve second order accuracy in time and …
Total citations
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Scholar articles
N Trask, M Maxey, K Kim, M Perego, ML Parks, K Yang… - Computer Methods in Applied Mechanics and …, 2015