Two computational models for simulating the tumbling motion of elongated particles in fluids

Bartuschat D, Fischermeier E, Gustavsson K, Rüde U (2016)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2016

Journal

Computers & Fluids Elsevier

Publisher: Elsevier

Book Volume: 127

Pages Range: 17-35

URI: http://arxiv.org/pdf/1503.06869v1.pdf

DOI: 10.1016/j.compfluid.2015.12.010

Abstract

Suspensions with fiber-like particles in the low Reynolds number regime are modeled by two different approaches that both use a Lagrangian representation of individual particles. The first method is the well established formulation based on Stokes flow that is formulated as integral equations. It uses a slender body approximation for the fibers to represent the interaction between them directly without explicitly computing the flow field. The second is a new technique using the 3D lattice Boltzmann method on parallel supercomputers. Here the flow computation is coupled to a computational model of the dynamics of rigid bodies using fluid-structure interaction techniques. Both methods can be applied to simulate fibers in fluid flow. They are carefully validated and compared against each other, exposing systematically their strengths and weaknesses regarding their accuracy, the computational cost, and possible model extensions. (C) 2015 Elsevier Ltd. All rights reserved.

Authors with CRIS profile

Dominik Bartuschat Lehrstuhl für Informatik 10 (Systemsimulation) (LSS) Ulrich Rüde Lehrstuhl für Informatik 10 (Systemsimulation) (LSS)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

Related research project(s)

waLBerla - Widely applicable Lattice Boltzmann from Erlangen (waLBerla) Jan. 1, 2007 - Jan. 1, 2099

Involved external institutions

Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH) SE Sweden (SE)

How to cite

APA:

Bartuschat, D., Fischermeier, E., Gustavsson, K., & Rüde, U. (2016). Two computational models for simulating the tumbling motion of elongated particles in fluids. Computers & Fluids, 127, 17-35. https://doi.org/10.1016/j.compfluid.2015.12.010

MLA:

Bartuschat, Dominik, et al. "Two computational models for simulating the tumbling motion of elongated particles in fluids." Computers & Fluids 127 (2016): 17-35.

BibTeX: Download