IMECH-IR  > 流固耦合系统力学重点实验室
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
Corresponding AuthorZhang, Xuhui(zhangxuhui@imech.ac.cn)
Source PublicationAPPLIED OCEAN RESEARCH
2021-03-01
Volume108Pages:10
ISSN0141-1187
AbstractGas 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.
KeywordSubmarine mudflow Mass movement Multiphase flow Numerical simulation
DOI10.1016/j.apor.2021.102524
Indexed BySCI ; EI
Language英语
WOS IDWOS:000623851100005
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Ocean ; Oceanography
Funding ProjectNational 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 OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
Classification二类
Ranking1
ContributorZhang, Xuhui
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/86205
Collection流固耦合系统力学重点实验室
Affiliation1.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.
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.
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