Journal article
(Original article)


Lattice Boltzmann method for Oldroyd-B fluids


Publication Details
Author(s): Osmanlic F, Körner C
Publisher: Elsevier Ltd
Publication year: 2016
Volume: 124
Pages range: 190-196
ISSN: 0045-7930
Language: English

Abstract

A lattice method for modeling a solution of dumbbells in a Newtonian fluid, introduced by Onishi et al. (2005) [1], is implemented within an existing lattice Boltzmann framework (Körner et al. (2005)) [2]. The numerical scheme is compared with the analytical solution of steady state and start up simple shear flow and an oscillating velocity field under uniform motion. Furthermore, a new transport model is introduced and validated for an oscillating velocity field under uniform motion. Both tests are in good agreement with the analytical solution. Additionally, a 4 to 1 planar contraction is simulated to test if the method is capable of reproducing complex viscoelastic flows. A lip vortex at the entrance corner is observed. A second benchmark is the four-roller setup. The overall results are in good agreement with previous studies.



Focus Area of Individual Faculties


How to cite
APA: Osmanlic, F., & Körner, C. (2016). Lattice Boltzmann method for Oldroyd-B fluids. Computers & Fluids, 124, 190-196. https://dx.doi.org/10.1016/j.compfluid.2015.08.004

MLA: Osmanlic, Fuad, and Carolin Körner. "Lattice Boltzmann method for Oldroyd-B fluids." Computers & Fluids 124 (2016): 190-196.

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