scholarly journals Diffuse interface modeling of three-phase contact line dynamics on curved boundaries: A lattice Boltzmann model for large density and viscosity ratios

2017 ◽  
Vol 334 ◽  
pp. 620-638 ◽  
Author(s):  
Abbas Fakhari ◽  
Diogo Bolster
Keyword(s):  
Contact Line ◽  
Lattice Boltzmann ◽  
Lattice Boltzmann Model ◽  
Diffuse Interface ◽  
Phase Contact ◽  
Curved Boundaries ◽  
Large Density ◽  
Three Phase ◽  
Interface Modeling ◽  
Boltzmann Model

1308 Study of a finite difference lattice Boltzmann model considering large density difference

2004 ◽  
Vol 2004.79 (0) ◽  
pp. _13-15_-_13-16_
Author(s):  
Michihisa Tsutahara ◽  
Kazuhiko Ogawa ◽  
Masahiko Sakamoto ◽  
Hiroki Yokoyama ◽  
Masakazu Tajima ◽  
...  
Keyword(s):  
Finite Difference ◽  
Lattice Boltzmann ◽  
Density Difference ◽  
Lattice Boltzmann Model ◽  
Large Density ◽  
Boltzmann Model

SLIP ON CURVED BOUNDARIES IN THE LATTICE BOLTZMANN MODEL

2007 ◽  
Vol 18 (01) ◽  
pp. 15-24 ◽  
Author(s):  
LAJOS SZALMÁS
Keyword(s):  
Couette Flow ◽  
Lattice Boltzmann ◽  
Slip Flow ◽  
Distribution Functions ◽  
Lattice Boltzmann Model ◽  
Momentum Balance ◽  
Curved Boundaries ◽  
Cylindrical Couette Flow ◽  
Boltzmann Method ◽  
Boltzmann Model

We present a new boundary condition in the lattice Boltzmann method to model slip flow along curved boundaries. A requirement is formulated for the distribution functions based on the tunable momentum balance at the walls, which is shown to be equivalent to the constraint on the second moment. Numerical simulation of plane Couette flow in inclined channels and cylindrical Couette flow shows excellent agreement with the analytical results in the nearly continuum regime. Orientation effects on the velocity field are completely avoided.

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