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A Coupling Model of DEM and LBM for Fluid Flow through Porous Media

机译:通过多孔介质流体流动的DEM和LBM的耦合模型

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A two-dimensional coupling model of the discrete element method (DEM) and the lattice Boltzmann method (LBM) was used to study the fluid flow through porous media. The fluid flow was modeled at a mesoscale level by using the LBM. The particle motion was modeled at microscale level by means of the DEM. The interfacial interaction between the fluid and the solids is resolved by an implicit immersed boundary method (IBM). The proposed method has validated by comparing the numerical results with theoretic solutions in the literature. It demonstrates the ability of the proposed method to simulate fluid flows through complex porous media.
机译:使用离散元法(DEM)的二维耦合模型(DEM)和晶格Boltzmann方法(LBM)来研究流体流过多孔介质。 通过使用LBM在Messcale水平上建模流体流动。 粒子运动通过DEM在微尺度水平上进行建模。 通过隐含的浸没边界法(IBM)来分辨流体和固体之间的界面相互作用。 通过比较文献中的理论溶液的数值结果来验证所提出的方法。 它展示了所提出的方法模拟流体流过复杂多孔介质的能力。

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