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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Two-dimensional lattice-Boltzmann simulations of single phase flow in a pseudo two-dimensional micromodel
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Two-dimensional lattice-Boltzmann simulations of single phase flow in a pseudo two-dimensional micromodel

机译:伪二维微观模型中单相流的二维晶格-玻尔兹曼模拟

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We compare two-dimensional and three dimensional lattice-Boltzinann (LB) simulations Of fluid now in a pseudo-2D micromodel used in experimental work. We show that 2D LB simulations call be used to compute the average velocity field in 3D systems in which the third dimension is small compared with the other two dimensions, and where the velocity component along the third dimension is zero. Correct results are obtained provided a Viscous drag force, representing the effect of the third dimension, is used in the 2D model. The use of 2D simulations allows to significantly reduce the computational cost of the calculations, and hence to increase the size and resolution of the systems that can be Studied using the LB method. (c) 2005 Published by Elsevier B.V.
机译:我们现在在实验工作中使用的伪2D微观模型中比较流体的二维和三维晶格玻尔兹南(LB)模拟。我们证明了2D LB模拟可用于计算3D系统中的平均速度场,在该系统中,第三维与其他两个维相比较小,并且沿第三维的速度分量为零。如果在2D模型中使用代表三维尺寸的粘滞阻力,则可以获得正确的结果。 2D仿真的使用可以显着降低计算的计算成本,从而增加可以使用LB方法研究的系统的大小和分辨率。 (c)2005年由Elsevier B.V.

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