LISHCHUK, S. V., HALLIDAY, I. and CARE, C. M. (2008). Multicomponent lattice Boltzmann method for fluids with a density contrast. Physical review E. Statistical, nonlinear and soft matter physics, 77 (3).Full text not available from this repository.
We present and verify a multicomponent lattice Boltzmann simulation scheme for two immiscible and incompressible fluids with a large density contrast. Our method is constructed from a continuum approximation description of a single inhomogeneous, and essentially incompressible, fluid. The equations that arise from this analysis are mapped onto an established multicomponent lattice Boltzmann method. The approach avoids the computational expense of a numerical solution of the fluid pressure field in a separate step. We present results obtained with our model which validate the initial assumptions and verify correct static and dynamic operation of the model up to a fluid density contrast ratio of more than 500. The paper concludes with an example that illustrates the potential utility of the approach by modeling a gas bubble rising under gravity and breaking through a free surface.
|Research Institute, Centre or Group:||Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Materials and Fluid Flow Modelling Group|
|Depositing User:||Ann Betterton|
|Date Deposited:||04 Feb 2010 10:18|
|Last Modified:||11 May 2010 15:00|
Actions (login required)
Downloads per month over past year