Lattice-Boltzmann model based on field mediators for immiscible fluids

2003 ◽  
Vol 68 (5) ◽  
Author(s):  
L. O. E. Santos ◽  
P. C. Facin ◽  
P. C. Philippi
Keyword(s):  
Lattice Boltzmann ◽  
Immiscible Fluids ◽  
Lattice Boltzmann Model ◽  
Model Based ◽  
Boltzmann Model

scholarly journals A pseudopotential multiphase lattice Boltzmann model based on high-order difference

2018 ◽  
Vol 127 ◽  
pp. 234-243 ◽  
Author(s):  
Zhangrong Qin ◽  
Wanling Zhao ◽  
Yanyan Chen ◽  
Chaoying Zhang ◽  
Binghai Wen
Keyword(s):  
Lattice Boltzmann ◽  
High Order ◽  
Lattice Boltzmann Model ◽  
Order Difference ◽  
Model Based ◽  
Boltzmann Model

Lattice Boltzmann Simulation of Particle Motion in Binary Immiscible Fluids

2015 ◽  
Vol 18 (3) ◽  
pp. 757-786 ◽  
Author(s):  
Yu Chen ◽  
Qinjun Kang ◽  
Qingdong Cai ◽  
Moran Wang ◽  
Dongxiao Zhang
Keyword(s):  
Lattice Boltzmann ◽  
Particle Motion ◽  
Mass Conservation ◽  
Immiscible Fluids ◽  
Lattice Boltzmann Model ◽  
Lattice Boltzmann Simulation ◽  
Suspension Model ◽  
Wetting Model ◽  
Boltzmann Model ◽  
The Impact

AbstractWe combine the Shan-Chen multicomponent lattice Boltzmann model and the link-based bounce-back particle suspension model to simulate particle motion in binary immiscible fluids. The impact of the slightly mixing nature of the Shan-Chen model and the fluid density variations near the solid surface caused by the fluid-solid interaction, on the particle motion in binary fluids is comprehensively studied. Our simulations show that existing models suffer significant fluid mass drift as the particle moves across nodes, and the obtained particle trajectories deviate away from the correct ones. A modified wetting model is then proposed to reduce the non-physical effects, and its effectiveness is validated by comparison with existing wetting models. Furthermore, the first-order refill method for the newly created lattice node combined with the new wetting model significantly improves mass conservation and accuracy.

A LATTICE BOLTZMANN APPROACH FOR IMMISCIBLE FLUIDS WITH VERY DIFFERENT VISCOSITIES

2005 ◽  
Vol 16 (09) ◽  
pp. 1409-1435
Author(s):  
LUCIANO MISICI ◽  
SILVIA PALPACELLI
Keyword(s):  
Lattice Boltzmann ◽  
Immiscible Fluids ◽  
Three Dimensions ◽  
Lattice Boltzmann Model ◽  
Reconstruction Method ◽  
Interface Motion ◽  
Qualitative Comparison ◽  
Multi Scale ◽  
Drop Collision ◽  
Boltzmann Model

In this article, a lattice Boltzmann model for two immiscible fluids with same density but a large viscosity difference is developed. The effect of surface tension is included. An indicator function is used to model the interface motion and is updated by a lattice Boltzmann scheme. The macroscopic equation for this function is derived using multi-scale analysis. Numerical results are compared with theoretical and experimental ones for the problem of drop deformation under steady linear flows. A qualitative comparison with results given by a level contour reconstruction method for drop collision in three dimensions is also shown. Other numerical applications, such as flow past obstacles and a falling drop, are presented.

scholarly journals An Improved Lattice Boltzmann Model for Immiscible Fluids

2008 ◽  
Vol 2 (2) ◽  
pp. 307-317
Author(s):  
Long WU ◽  
Michihisa TSUTAHARA ◽  
Shinsuke TAJIRI
Keyword(s):  
Lattice Boltzmann ◽  
Immiscible Fluids ◽  
Lattice Boltzmann Model ◽  
Boltzmann Model
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