Volume 81, Number 6, March 2008
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||27 February 2008|
A bottom-up approach to non-ideal fluids in the lattice Boltzmann method
School of Engineering, Laurentian University - 935 Ramsey Lake Road, Sudbury, ON P3E 2C6, Canada
Corresponding author: firstname.lastname@example.org
Accepted: 30 January 2008
The Shan-Chen (SC) pseudopotential lattice Boltzmann model for multiphase fluids has been revised to incorporate the particle exclusion-volume effect. Previous attempts to simulate a non-ideal fluid with the SC model tailored the interparticle potential to obtain the desired equation of state. Such an approach lumped the contributions from the particle exclusion-volume effect and the interparticle interactions together, and undermined the excellent physical basis of the SC model. In this letter, the equilibrium distributions are modified to include the particle exclusion-volume effect, and the clear physical meaning of interparticle potential in the original SC model has been reserved. Without losing the simple mathematical formulation and unique physical representation, the revised model can easily model non-ideal fluids with various equations of state. A van der Waals fluid has also been simulated as an example to demonstrate the significance of this improvement.
PACS: 68.03.Cd – Surface tension and related phenomena / 47.11.-j – Computational methods in fluid dynamics / 05.70.Ce – Thermodynamic functions and equations of state
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.