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A Lattice-Gas Model of Fluid Flow through Tortuous Channels of Hydrophilous and Hydrophobic Porous Materials

机译:亲水和疏水多孔材料曲折通道内流体流动的格子气体模型

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A cellular automata (CA) approach is proposed for simulating a fluid flow through the porous material with tortuous channels and different wetting properties of pore walls. The approach aims to combine CA methods both for construction the structure of porous material model and to simulate the fluid flow through it. It is shown that any kind of tortuous structure may be obtained by pattern formation CA evolution, which is then used as a medium for Lattice Gas CA model application. The model is provided by special boundary conditions to account for additional tension forces between solid and liquid substances, determining the hydrophobic and hydrophilous properties of the material. The model has been tested on a small 2D array to obtain some dependencies of flow velocity on the tortuosity and wetting properties of pore walls. Parallel implementation of flow simulation through a carbon electrode of a hydrogen fuel cell is also performed, demonstrating high efficiency (>70%) of parallelization.
机译:提出了一种细胞自动机(CA)方法来模拟通过具有弯曲通道和孔壁不同润湿特性的多孔材料的流体流动。该方法旨在结合CA方法来构造多孔材料模型的结构并模拟通过它的流体流动。结果表明,可以通过图案形成CA演化获得任何类型的曲折结构,然后将其用作晶格气CA模型应用的介质。该模型由特殊的边界条件提供,以考虑固体和液体物质之间的附加张力,从而确定材料的疏水性和亲水性。该模型已在小型2D阵列上进行了测试,以获得流速对孔壁的曲率和润湿特性的某些依赖性。还执行了通过氢燃料电池的碳电极的流动模拟的并行实施,证明了并行化的高效率(> 70%)。

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