A fast multipole boundary element method implemented for wet single particle and wall interactions
A fast multipole boundary element method implemented for wet single particle and wall interactions
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一种用于湿单颗粒和壁相互作用的快速多极边界元方法
DOI：
10.1016/j.powtec.2018.03.029
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发表时间：
2019
影响因子：
5.2
通讯作者：
Andrews J
中科院分区：
文献类型：
--
作者：
Andrews J
本文介绍了基于快速多极边界元法（FMBEM）开发研究湿颗粒系统动力学的并行计算机程序的进展。这里考虑三个具有封闭形式或数值解的例子，因此可以作为基准。它们涉及毛细相互作用，当粒子浸入牛顿流体中接近固体壁时形成的固体-固体接触，以及粒子的等粘性流体动力学和弹性流体动力学滑动。虽然计算成本比DEM高，但有许多优点，例如将相互作用从钟摆扩展到更饱和的状态，非球形颗粒可以轻松建模，并且能够模拟可能表现出从摩擦流到润滑流转变的湿颗粒系统。因此，FMBEM能够比DEM更真实地模拟湿团块，这对于提高双螺杆造粒的性能非常重要，这是当前工作的预期应用。
The progress is described in developing a parallel computer code to study the dynamics of wet granular systems based on the Fast Multi-pole Boundary Element Method (FMBEM). Here, three examples are considered that have closed-form or numerical solutions and thus able to act as benchmarks. They involved capillary interactions, the formation of a solid-solid contact when a particle approaches a solid wall while immersed in a Newtonian fluid, and the isoviscous hydrodynamic and elastohyrodynamic sliding of a particle. While computationally more expensive than DEM, there are a number of advantages such as extending interactions from the pendular to more saturated states, the ease with which non-spherical particles can be modelled and the ability to model wet granular systems that may exhibit transitions from frictional to lubricated flow. Consequently, FMBEM is able to model wet agglomerates more realistically than DEM and this is important for improving the performance of twin screw granulation, which is the intended application of the current work.
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DOI：
--
发表时间：
1973
期刊：
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
影响因子：
--
作者：
D. R. Adams;W. Hirst
通讯作者：
W. Hirst
影响因子：
5.2
作者：
Iveson, SM;Beathe, JA;Page, NW
通讯作者：
Page, NW
影响因子：
5.2
作者：
Gantt, Justin A.;Cameron, Ian T.;Gatzke, Edward P.
通讯作者：
Gatzke, Edward P.
影响因子：
5.2
作者：
El Hagrasy, A. S.;Hennenkamp, J. R.;Litster, J. D.
通讯作者：
Litster, J. D.
影响因子：
5.2
作者：
Iveson, SM;Wauters, PAL;Scarlett, B
通讯作者：
Scarlett, B