Improvement in the Boundary Conditions of Smoothed Particle Hydrodynamics
Improvement in the Boundary Conditions of Smoothed Particle Hydrodynamics
复制标题
光滑粒子流体动力学边界条件的改进
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Y. Kawaguchi
中科院分区：
文献类型：
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作者：
T. Harada;S. Koshizuka;Y. Kawaguchi
本文对光滑粒子流体力学的边界条件计算方法进行了改进。通常，为了在粒子方法中计算壁边界，壁被转换为粒子表示并用作静态粒子。然而，它有几个问题，例如，边界被离散为粒子，因此不能得到边界形状的精确表示。为了精确表示形状，必须提高模拟的分辨率，因此需要大量的粒子。该方法不使用边界粒子，而是使用距离函数来表示边界。因此，可以精确地表示边界的形状而不增加粒子的分辨率。这样可以减少总粒子数，减轻计算负担。因此，所提出的方法是有用的实时应用。
s: In this paper, we propose an improvement in boundary condition computation of Smoothed Particle Hydrodynamics. Generally, to calculate a wall boundary in particle methods, a wall is converted into particle representation and used as static particles. However, it has several issues, e.g., a boundary is discretized into particles and thus does not result in accurate representation of the boundary shape. For precise representation of the shape, the resolution of a simulation must be increased and thus a large number of particles are required. The proposed method does not use boundary particles but rather uses a distance function to represent the boundary. Therefore, the shape of a boundary can be represented precisely without increasing the resolution of the particles. Thus, the total particle number can be reduced and it lighten computational burden. Hence, the proposed method is useful for real-time applications.
影响因子：
1.2
作者：
Koshizuka, S;Oka, Y
通讯作者：
Oka, Y