| 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)
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| Source Publication | OCEAN ENGINEERING
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| 2023-10-01 | |
| Volume | 285Pages:115256 |
| ISSN | 0029-8018 |
| Abstract | 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. |
| Keyword | Velocity decomposition Wave generation Two-phase flow |
| DOI | 10.1016/j.oceaneng.2023.115256 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001048236900001 |
| WOS Research Area | Engineering ; Oceanography |
| WOS Subject | Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography |
| Funding Organization | National Natural Science Foundation of China (NSFC) Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102] ; NSFC, China [11972038, 11902323, 12202453] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Yang, ZX (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92561 |
| Collection | 非线性力学国家重点实验室 流固耦合系统力学重点实验室 |
| Affiliation | {Yang, Zixuan} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China, Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation 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.Rp_Au:Yang, ZX (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 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. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2023Fa234.pdf（2235KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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