Generation of incident wave in two-phase flow simulation based on field decomposition

doi:10.1016/j.oceaneng.2023.115256

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Generation of incident wave in two-phase flow simulation based on field decomposition
	Lao TT(劳铁涛); Li ZB(李曌斌); Wang ZY(王志英); Wang Z(王展); Yang ZX(杨子轩)
刊名	OCEAN ENGINEERING
	2023-10-01
卷号	285 页码:115256
关键词	Velocity decomposition Wave generation Two-phase flow
ISSN号	0029-8018
DOI	10.1016/j.oceaneng.2023.115256
英文摘要	Field decomposition is an effective strategy for reducing numerical dissipation and dispersion. This strategy was employed by Li et al. specialIntscript to generate incident waves in two-phase flow simulations. This study attempts to improve previous methods in two ways. First, the density gradient in the additional source term, i.e. a delta function at the interface, is explicitly discretised. Although the explicit calculation simplifies the implementation, an additional pressure translation correction method is proposed to ensure numerical stability and accuracy. Second, the coupled level-set and volume-of-fluid method is used for interface capture. The calculation of the additional source term is more precise using the level-set function. The two proposed improvements result in a second-order spatial accuracy for the wave amplitude. A test on wave propagation over a flat bottom shows that the proposed method provides more accurate predictions of the wave amplitude compared with the previous method. In other test cases, including wave propagation over two-dimensional breakwater and three-dimensional shoal, the simulation results show good agreement with the experimental data.
分类号	一类
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:001048236900001
资助机构	National Natural Science Foundation of China (NSFC) Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102] ; NSFC, China [11972038, 11902323, 12202453]
其他责任者	Yang, ZX (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92561]
专题	力学研究所_非线性力学国家重点实验室
作者单位	{Yang, Zixuan} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China, Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lao TT,Li ZB,Wang ZY,et al. Generation of incident wave in two-phase flow simulation based on field decomposition[J]. OCEAN ENGINEERING,2023,285:115256.
APA	劳铁涛,李曌斌,王志英,王展,&杨子轩.(2023).Generation of incident wave in two-phase flow simulation based on field decomposition.OCEAN ENGINEERING,285,115256.
MLA	劳铁涛,et al."Generation of incident wave in two-phase flow simulation based on field decomposition".OCEAN ENGINEERING 285(2023):115256.