Particles-bridging the Gap between Solids and Fluids

Particles-bridging the Gap between Solids and Fluids
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弥合固体和流体之间差距的颗粒

DOI:
10.1016/j.piutam.2014.01.016
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发表时间:
--
期刊:
Procedia IUTAM
影响因子:
--
通讯作者:
Fleissner
Fleissner
中科院分区:
--
文献类型:
--
作者:
Eberhard;Seifried;Ergenzinger;Stühler;Spreng;Müller;Fleissner

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无网格粒子法是近年来在工程和物理领域受到广泛关注的一组仿真方法。通过不同工程背景下的应用实例,我们展示了这些方法,特别是光滑粒子流体动力学和离散元方法如何作为有价值的数值模拟工具,例如在设计过程中。我们提供了一个岩石力学的模拟例子,演示了如何使用增强的离散元方法来模拟花岗岩材料的断裂。基于可变形的四面体颗粒元素的非常软颗粒物质的模拟,因为它可能对硅材料的模拟有用,是强调颗粒方法灵活性的另一个例子。此外,我们展示了如何使用基于光滑颗粒流体动力学的弹塑性固体模拟方法来研究切削过程。最后,我们提供了应用光滑颗粒流体动力学流体多体模拟来共同模拟晃动过程的实例。
Meshless particle methods, a group of simulation approaches that gains attention in the recent years in engineering and physics, are in the focus of this article. By means of application examples from different engineering contexts, we demonstrate how such methods, especially smoothed particle hydrodynamics and the discrete element method can be used as valuable numerical simulation tools, e.g., in design processes. We provide a simulation example from rock mechanics that demonstrates how the breakage of granite material can be simulated using an enhanced discrete element method approach. The simulation of very soft granular matter based on deformable tetrahedral particle elements, as it might be useful for the simulation of e.g. silicon materials, is another example that emphasizes the flexibility of particle methods. Moreover, we show how cutting processes may be investigated using a smoothed particle hydrodynamic based simulation approach for elasto-plastic solids. Finally, we provide examples for the application of smoothed particle hydrodynamic fluid-multibody simulations to co-simulate sloshing processes.
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