Lattice Boltzmann method for Oldroyd-B fluids

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Osmanlic F, Körner C
Zeitschrift: Computers & Fluids
Verlag: Elsevier Ltd
Jahr der Veröffentlichung: 2016
Band: 124
Seitenbereich: 190-196
ISSN: 0045-7930
Sprache: Englisch


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-Autoren / FAU-Herausgeber

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


Osmanlic, F., & Körner, C. (2016). Lattice Boltzmann method for Oldroyd-B fluids. Computers & Fluids, 124, 190-196.

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


Zuletzt aktualisiert 2018-16-11 um 20:50