Application of the Godunov-Type Corrective Smoothed Particle Method to Impulsive Load Studies

doi:10.47176/jafm.15.06.1180

	Application of the Godunov-Type Corrective Smoothed Particle Method to Impulsive Load Studies
	Zhang, M.2; Zhang, J. M.1
刊名	JOURNAL OF APPLIED FLUID MECHANICS
	2022-11-01
卷号	15 期号:6 页码:1889-1899
关键词	Meshfree method SPH method Godunov-type corrective smoothed particle method (GSPM) 1D shock tube 1D detonation wave
ISSN号	1735-3572
DOI	10.47176/jafm.15.06.1180
通讯作者	Zhang, M.(m_zhang_imcas@163.com)
英文摘要	The smoothed particle hydrodynamics (SPH) method is based on the kernel particle approximation, which is sensitive to the uniformity of the SPH particle distribution in the computational domain; that is, all SPH particles must be distributed evenly in the computational domain. These factors significantly influence the practical application of the SPH method. Meanwhile, calculating the sum near the boundaries of the computational domain may cause boundary defect problems since there are insufficient particles in the support domain, thus often resulting in relatively high errors in numerical simulation results near boundaries. To address these problems, the kernel particle approximation discrete process was corrected based on the traditional SPH method, and the corrected SPH method, the Godunov-type corrective smoothed particle method (CSPM), was formulated by introducing Riemann decomposition. In this study, the traditional SPH method and Godunov-type CSPM method were applied in a comparative study of discontinuous function problems, 1D shock tubes and 1D detonation waves. According to the analysis results, the Godunov-type CSPM method can not only effectively improve the calculation accuracy and compatibility of the traditional SPH method in discontinuous shock wave problems but also increase the accuracy of the traditional SPH method in capturing strong discontinuities.
资助项目	National Natural Science Foundation of China[11261026] ; National Natural Science Foundation of China[11532015] ; National Natural Science Foundation of China[U1738119]
WOS关键词	SPH ; HYDRODYNAMICS ; DEM ; SIMULATION
WOS研究方向	Thermodynamics ; Mechanics
语种	英语
WOS记录号	WOS:000859034300020
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90346]
专题	力学研究所_国家微重力实验室
通讯作者	Zhang, M.
作者单位	1.Kunming Univ Sci & Technol, Sch Architectural Engn, Kunming 650500, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, M.,Zhang, J. M.. Application of the Godunov-Type Corrective Smoothed Particle Method to Impulsive Load Studies[J]. JOURNAL OF APPLIED FLUID MECHANICS,2022,15(6):1889-1899.
APA	Zhang, M.,&Zhang, J. M..(2022).Application of the Godunov-Type Corrective Smoothed Particle Method to Impulsive Load Studies.JOURNAL OF APPLIED FLUID MECHANICS,15(6),1889-1899.
MLA	Zhang, M.,et al."Application of the Godunov-Type Corrective Smoothed Particle Method to Impulsive Load Studies".JOURNAL OF APPLIED FLUID MECHANICS 15.6(2022):1889-1899.