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The use of Path Tracking Method for determining the tortuosity field in a porous bed

机译:路径跟踪法在确定多孔床弯曲度场中的应用

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The article is related to a computational method of obtaining the geometric tortuosity in granular beds, i.e. polydisperse beds consisting of spherical or quasi-spherical particles, freely distributed in the 3D space. The main aim is to show a new way of calculating two-dimensional tortuosity distribution in the plane perpendicular to the chosen direction in the space (interpreted as the main flow direction) by the use of own computational algorithm, the so-called Path Tracking Method (PTM). This way links the ability of the PTM to analyze relatively large granular beds due to low demand for computing power and the possibility of obtaining the tortuosity distribution in the space. Although this distribution is only 2D (there is only one value for every discrete point in the plane perpendicular to the main flow direction), it may be useful for estimation of the local pressure drops in fluid flows through granular bed. To reach the aim, the PTM has been improved and its application here is shown in a new context.
机译:该文章涉及一种获得颗粒床中几何曲折度的计算方法,该颗粒床即由球形或准球形颗粒组成的自由分散在3D空间中的多分散床。主要目的是展示一种通过使用自己的计算算法(即所谓的路径跟踪方法)在垂直于空间中选定方向(解释为主流)的平面上计算二维曲率分布的新方法。 (PTM)。由于对计算能力的需求低以及获得空间中曲折度分布的可能性,这种方式将PTM的能力与分析相对较大的颗粒床联系起来。尽管此分布仅为2D(垂直于主流方向的平面上每个离散点只有一个值),但对于估算流过颗粒床的流体的局部压降可能很有用。为了达到该目的,PTM已得到改进,并且在新的上下文中显示了其在此处的应用。

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