Lattice Boltzmann method for Oldroyd-B fluids

Journal article
(Original article)


Publication Details

Author(s): Osmanlic F, Körner C
Journal: Computers & Fluids
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.



FAU Authors / FAU Editors

Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Osmanlic, Fuad
Zentralinstitut für Neue Materialien und Prozesstechnik


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.

BibTeX: 

Last updated on 2018-19-04 at 03:52