| Numerical simulation on flow characteristics of large-scale submarine mudflow | |
Zhang Y(张岩)1,2; Lu XB(鲁晓兵)1,2 ; Zhang XH(张旭辉)1,2; Li P(李鹏)1,2
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| Corresponding Author | Zhang, Xuhui([email protected]) |
| Source Publication | APPLIED OCEAN RESEARCH
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| 2021-03-01 | |
| Volume | 108Pages:10 |
| ISSN | 0141-1187 |
| Abstract | Gas hydrate (GH) is widely distributed in the world according to the geological survey. Most of GH is located in the ocean. After GH dissociation, the strength of gas hydrate bearing sediments (GHBS) decreases accompanying the rise of pore pressure, which can cause marine landslide. Landslide may transform into mudflows during movement on the seabed. The massive movement of submarine mudflow can result in the serious deformation of (or even damage of) submarine pipelines, the dumping of offshore platforms, and tsunamis. In this paper, the flow characteristics of the large-scale submarine mudflow are investigated based on the Euler-Euler multiphase flow model combining with kinetic theory of granular flow (KTGF). The controlling dimensionless parameters, such as the initial depositional form and the relative depth, are given. The hydroplaning and frontal detachment during the mass movement are captured. The front velocity of the mudflow, and the free surface elevations at the sea level are analyzed. The numerical results show that the large-scale submarine mudflow has a significant impact on the sea level. The submarine mudflow should be taken into consideration during design of submarine pipelines and offshore platforms in GH-distributed sea area duo to its great destructive power. |
| Keyword | Submarine mudflow Mass movement Multiphase flow Numerical simulation |
| DOI | 10.1016/j.apor.2021.102524 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000623851100005 |
| WOS Research Area | Engineering ; Oceanography |
| WOS Subject | Engineering, Ocean ; Oceanography |
| Funding Project | National Natural Science Foundation of China[11872365] ; National Natural Science Foundation of China[51639008] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017027] |
| Funding Organization | National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Zhang, Xuhui |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86205 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang Y,Lu XB,Zhang XH,et al. Numerical simulation on flow characteristics of large-scale submarine mudflow[J]. APPLIED OCEAN RESEARCH,2021,108:10.Rp_Au:Zhang, Xuhui |
| APA | 张岩,鲁晓兵,张旭辉,&李鹏.(2021).Numerical simulation on flow characteristics of large-scale submarine mudflow.APPLIED OCEAN RESEARCH,108,10. |
| MLA | 张岩,et al."Numerical simulation on flow characteristics of large-scale submarine mudflow".APPLIED OCEAN RESEARCH 108(2021):10. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2021113.pdf（5869KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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