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Numerical simulation on flow characteristics of large-scale submarine mudflow

文献类型：期刊论文

作者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
刊名APPLIED OCEAN RESEARCH
出版日期2021-03-01
卷号108页码:10
关键词Submarine mudflow Mass movement Multiphase flow Numerical simulation
ISSN号0141-1187
DOI10.1016/j.apor.2021.102524
通讯作者Zhang, Xuhui(zhangxuhui@imech.ac.cn)
英文摘要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.
分类号二类
资助项目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]
WOS研究方向Engineering ; Oceanography
语种英语
WOS记录号WOS:000623851100005
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
其他责任者Zhang, Xuhui
源URL[http://dspace.imech.ac.cn/handle/311007/86204]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
推荐引用方式
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.
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.

入库方式： OAI收割

来源：力学研究所

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