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SPH modelling of fluid at the grain level in a porous medium

机译:多孔介质中颗粒级流体的SPH建模

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摘要

Computational modelling of the flow of fluids in porous media has traditionally been at a macroscopic level where the medium's permeability and porosity are an input (from experiments for example). In many cases this is difficult, especially if the porous medium changes its solid structure as a function of time. This situation occurs in reactive systems such as "heap-leaching", where biological and/or chemical solutions are introduced into the heap to dissolve or react with valuable materials. In this case, modelling fluid flow at the grain level is paramount and we show how this can be done with the SPH technique. We present three-dimensional SPH simulations of fluid flow in an idealised porous medium and show that the technique yields flows which are physically realistic. The permeability of the medium is then predicted.
机译:传统上,多孔介质中流体流动的计算模型是在宏观层面上进行的,其中介质的渗透率和孔隙度是输入值(例如,来自实验)。在许多情况下,这是困难的,特别是如果多孔介质随时间改变其固体结构时。这种情况发生在诸如“堆浸”之类的反应性系统中,其中将生物和/或化学溶液引入堆中以溶解或与有价值的材料反应。在这种情况下,在颗粒级对流体流动进行建模是至关重要的,我们将展示如何使用SPH技术完成此任务。我们介绍了理想多孔介质中流体流动的三维SPH模拟,并表明该技术产生的流体流动在物理上是现实的。然后预测介质的渗透性。

著录项

  • 来源
    《Applied Mathematical Modelling》 |2011年第4期|p.1666-1675|共10页
  • 作者单位

    CS1RO Mathematics, Informatics and Statistics, Private Bag 33, Clayton South, Vic 3169, Australia;

    CS1RO Mathematics, Informatics and Statistics, Private Bag 33, Clayton South, Vic 3169, Australia;

    CS1RO Mathematics, Informatics and Statistics, Private Bag 33, Clayton South, Vic 3169, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    smoothed particle hydrodynamics; porous media; permeability;

    机译:光滑颗粒流体动力学;多孔介质;渗透率;

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