Lattice Boltzmann simulation on the liquid junction potential in a microchannel

Park, Jaewan; Huh, Kang Y.; Li, Xianguo

doi:10.1016/j.jelechem.2006.03.052

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…The multi-component LB model with inter-particle interaction (29, 30) was developed for simulation of multi-phase flows and phase transitions. When the interaction is weak this model can be applied to simulate diffusion due to various driving mechanisms (20,25,30). If any external force is applied to component k the momentum should be incremented correspondingly.…”

Section: Lattice Boltzmann Modelmentioning

confidence: 99%

“…It was applied to incompressible fluid flows (19,20), transport of passive scalars (21), miscible and immiscible fluids in complex geometries (22) and two-phase flow with phase change (23). The kinetic nature of the LB method was also shown to be applicable to simulation of chemical reaction in micro-and meso-scopic flow (24) and electrokinetic transport phenomena (25). In this work, we have modeled the two representative GDL materials, woven carbon cloth and carbon paper, via LB method.…”

Section: Introductionmentioning

confidence: 99%

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Application of Lattice Boltzmann Method to the Simulation of Multiphase Flow in the Inhomogeneous Porous Electrode of a PEM Fuel Cell

Park

2008

ECS Trans.

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The lattice Boltzmann (LB) method is applied to the multi-phase flow phenomenon in the inhomogeneous gas diffusion layer of a PEM fuel cell. The inhomogeneous porous structure of the carbon cloth and carbon paper has been modeled as void space and porous area using Stokes/Brinkman formulation and void space and impermeable fiber distributions obtained from microscopic image. The permeability of the porous medium is calculated and compared to the experimental measurements in literature showing a good agreement. Simulation results indicate that the permeability of the medium is strongly influenced by the fiber orientations. Present LB flow models are applied to the multi-phase flow simulations by incorporating multi-component model with inter-particle interaction. The model successfully simulates the complicated unsteady behaviors of liquid droplet motion in the porous medium providing a useful tool to investigate the mechanism of liquid water accumulation/removal in a gas diffusion layer of a PEM fuel cell.

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Section: Lattice Boltzmann Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of Lattice Boltzmann Method to the Simulation of Multiphase Flow in the Inhomogeneous Porous Electrode of a PEM Fuel Cell

Park

2008

ECS Trans.

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“…Eq. (18) has also been used to incorporate a body force such as fluid-solid interaction potential [27], fluid-fluid interaction potential [28] and electrostatic potential between electronically charged ions [19]. The form of the forcing term F(x,t) which is needed to recover the Brinkman equation is given by…”

Section: Lattice Boltzmann Model For a Porous Mediummentioning

confidence: 99%

“…It was applied to incompressible fluid flows [13,14], transport of passive scalars [15], miscible and immiscible fluids in complex geometries [16] and two-phase flow with phase change [17]. The kinetic nature of the LB method was also shown to be applicable to simulation of chemical reaction in micro-and meso-scopic flow [18] and electrokinetic transport phenomena [19]. We used the porous LB model developed by Spaid and Phelan [20] to simulate the reactant flow in porous electrode made of carbon cloth, which is a heterogeneous porous medium.…”

Section: Introductionmentioning

confidence: 99%