Numerical Simulation of Sudden Contraction Flow for Viscoelastic Fluids with the Lattice Boltzmann Method

DOI

10.2991/mme-16.2017.139How to use a DOI?

Keywords

LBM, Viscoelastic fluid, Sudden contraction flow, Reynolds numbers Re, Viscosity vs, Weissenberg numbers Wi.

Abstract

In this paper, based on the lattice Boltzmann method (LBM) and the Oldroyd-B model, the decoupled solving method for the incompressible Navier-Stokes equation and advection-diffusion constitutive equation and the boundary processing formats are given. The flow of viscoelastic fluid in the planar 3:1 contraction channel is simulated. For different Reynolds numbers Re, Weissenberg numbers Wi and viscosity ns, the streamline patterns, the positions of vortex center and the length of vortex are obtained, and the influences of these parameters on flow behavior are discussed. The numerical results also present that the decoupled solving method is feasible and the LBM has fine accuracy and stability.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Qing Yao
AU  - Wang-Jun Zhou
AU  - Yong Li
AU  - Lu-Wu He
PY  - 2016/12
DA  - 2016/12
TI  - Numerical Simulation of Sudden Contraction Flow for Viscoelastic Fluids with the Lattice Boltzmann Method
BT  - Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)
PB  - Atlantis Press
SP  - 987
EP  - 993
SN  - 2352-5401
UR  - https://doi.org/10.2991/mme-16.2017.139
DO  - 10.2991/mme-16.2017.139
ID  - Yao2016/12
ER  -