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Technology of Graphic & Image
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2871-2875

SPH liquid simulation method based on adaptive smooth length

Zhu Jian
Li Hongshu
Cai Ruichu
Chen Bingfeng
School of Computers, Guangdong University of Technology, Guangzhou 510006, China

Abstract

The traditional SPH fluid simulation method usually uses fixed particle smooth length for interpolation, which may result in large interpolation errors in some cases. In order to improve the simulation accuracy, this paper established the relationship between the smoothing length of particles and the harmonic mean of neighboring particle densities, and adaptively adjusted the smoothing length of particles. Furthermore, the paper designed the corresponding particle neighbor search scheme and kernel function to solve the problem of force asymmetry. Experiments show that this method effectively reduces the variance of the number of particle neighbors, which solves the problem of large interpolation error caused by fixed support domain of traditional SPH particles, and makes the simulation results closer to physical facts. At the same time, due to improved calculation accuracy, the simulation stability is enhanced, and the physical simulation can be performed with a larger time step to effectively improve the simulation efficiency. Finally, compared with state-of-the-art methods, this method has advantages both in visual quality and simulation speed.

Foundation Support

国家自然科学基金资助项目(61502109,61672502,61702112)
广东省自然科学基金资助项目(2016A030310342)
广东省信息物理融合系统重点实验室开放课题(2016B030301008)
NSFC-广东联合基金资助项目(U1501254)
广东省科技计划项目(2016A040403078,2017B010110015,2017B010110007)
广州市珠江科技新星(201610010101)
广州市科技计划项目(201604016075)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2019.06.0172
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 9
Section: Technology of Graphic & Image
Pages: 2871-2875
Serial Number: 1001-3695(2020)09-064-2871-05

Publish History

[2020-09-05] Printed Article

Cite This Article

朱鉴, 李泓澍, 蔡瑞初, 等. 一种基于自适应光滑长度的SPH液体模拟方法 [J]. 计算机应用研究, 2020, 37 (9): 2871-2875. (Zhu Jian, Li Hongshu, Cai Ruichu, et al. SPH liquid simulation method based on adaptive smooth length [J]. Application Research of Computers, 2020, 37 (9): 2871-2875. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.


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