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	Efficient Implementation of Smoothed Particle Hydrodynamics (SPH) with Plane Sweep Algorithm
	Wang, Dong ; Zhou, Yisong ; Shao, Sihong
	2016
关键词	Smoothed particle hydrodynamics meshfree method neighbour search plane sweep algorithm Morton code segment tree quadtree parallelization dam break BINARY SEARCH TREES SIMULATION FLOWS STARS MODEL
英文摘要	Neighbour search (NS) is the core of any implementations of smoothed particle hydrodynamics (SPH). In this paper, we present an efficient O(NlogN) neighbour search method based on the plane sweep (PW) algorithm with N being the number of SPH particles. The resulting method, dubbed the PWNS method, is totally independent of grids (i.e., purely meshfree) and capable of treating variable smoothing length, arbitrary particle distribution and heterogenous kernels. Several state-of-the-art data structures and algorithms, e.g., the segment tree and the Morton code, are optimized and implemented. By simply allowing multiple lines to sweep the SPH particles simultaneously from different initial positions, a parallelization of the PWNS method with satisfactory speedup and load-balancing can be easily achieved. That is, the PWNS SPH solver has a great potential for large scale fluid dynamics simulations.; National Natural Science Foundation of China [11471025, 91330110, 11421101]; Specialized Research Fund for the Doctoral Program of Higher Education [20110001120112]; Beijing International Center for Mathematical Research; SCI(E); ARTICLE; wangdong11@fudan.edu.cn; failed.zys@gmail.com; sihong@math.pku.edu.cn; 3; 770-800; 19
语种	英语
出处	SCI
出版者	COMMUNICATIONS IN COMPUTATIONAL PHYSICS
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/438538]
专题	数学科学学院
推荐引用方式 GB/T 7714	Wang, Dong,Zhou, Yisong,Shao, Sihong. Efficient Implementation of Smoothed Particle Hydrodynamics (SPH) with Plane Sweep Algorithm. 2016-01-01.

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