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


Research Fields

Modelling and Simulation
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


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 2018-16-11 at 20:50