Generating Optimal Initial Conditions for Smoothed Particle Hydrodynamics Simulations
Generating Optimal Initial Conditions for Smoothed Particle Hydrodynamics Simulations
复制标题
为平滑粒子流体动力学模拟生成最佳初始条件
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
T. Statler
中科院分区：
文献类型：
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作者：
S. Diehl;G. Rockefeller;Christopher L. Fryer;D. Riethmiller;T. Statler
摘要综述了现有的光滑粒子流体力学设置方法，并概述了它们的优点、局限性和缺点。我们提出了一种新的方法来构造光滑粒子流体动力学模拟的初始条件，这也可能对n体模拟感兴趣，并在许多应用中证明了这种方法。这种新方法的灵感来自于使用加权Voronoi镶嵌的自适应分形技术。粒子被放置和迭代移动的基础上邻近的粒子和所需的空间分辨率。该方法可以满足任意复杂的空间分辨率要求。
Abstract We review existing smoothed particle hydrodynamics setup methods and outline their advantages, limitations, and drawbacks. We present a new method for constructing initial conditions for smoothed particle hydrodynamics simulations, which may also be of interest for N-body simulations, and demonstrate this method on a number of applications. This new method is inspired by adaptive binning techniques using weighted Voronoi tessellations. Particles are placed and iteratively moved based on their proximity to neighbouring particles and the desired spatial resolution. This new method can satisfy arbitrarily complex spatial resolution requirements.