Towards the simulation of arbitrarily shaped 3D particles using a homogenised lattice Boltzmann method
Towards the simulation of arbitrarily shaped 3D particles using a homogenised lattice Boltzmann method
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DOI：
10.1016/j.compfluid.2018.02.027
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发表时间：
2018-08
影响因子：
2.8
通讯作者：
R. Trunk;Jan E. Marquardt;G. Thäter;H. Nirschl;M. Krause
中科院分区：
文献类型：
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作者：
R. Trunk;Jan E. Marquardt;G. Thäter;H. Nirschl;M. Krause
均匀晶格玻尔兹曼方法（HLBM），以前公布的克劳斯等人。扩展到3D模拟。所提出的方法有利于模拟任意形状的粒子，这是自动构建的几何文件，描述的表面。所提出的方法依赖于均匀网格上的颗粒的离散表示，而不是通过可以由简单的分析方程或其组合描述的形状的近似。数值实验的结果，验证了离散粒子表示，粒子动力学以及作用力的建设。此外，基于计算机断层扫描生成的几何数据的石灰石颗粒的模拟方法的应用程序被展示。
The homogenised lattice Boltzmann method (HLBM), previously published by Krause et al. is extended for 3D simulations. The presented approach facilitates the simulation of arbitrarily shaped particles, which are automatically constructed from a geometry file, describing the surface. The proposed method relies on a discrete representation of the particle on a homogeneous grid rather than an approximation by a shape which can be described by a simple analytical equation or a combination of such. Results of numerical experiments are presented, validating the construction of the discrete particle representation, the particle dynamics as well as the acting forces. Moreover, an application of the method for the simulation of limestone particles based on geometry data generated from computer tomography scans is showcased.