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Title:
A new solver for granular avalanche simulation: Indoor experiment verification and field scale case study
Author: Wang XL(王晓亮); Li JC(李家春)
Source: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
Issued Date: 2017-12-01
Volume: 60, Issue:12
Abstract: A new solver based on the high-resolution scheme with novel treatments of source terms and interface capture for the Savage-Hutter model is developed to simulate granular avalanche flows. The capability to simulate flow spread and deposit processes is verified through indoor experiments of a two-dimensional granular avalanche. Parameter studies show that reduction in bed friction enhances runout efficiency, and that lower earth pressure restraints enlarge the deposit spread. The April 9, 2000, Yigong avalanche in Tibet, China, is simulated as a case study by this new solver. The predicted results, including evolution process, deposit spread, and hazard impacts, generally agree with site observations. It is concluded that the new solver for the Savage-Hutter equation provides a comprehensive software platform for granular avalanche simulation at both experimental and field scales. In particular, the solver can be a valuable tool for providing necessary information for hazard forecasts, disaster mitigation, and countermeasure decisions in mountainous areas.
Keyword: avalanche ; landslide ; WAF ; TVD
Language: 英语
Indexed Type: SCI ; EI ; CSCD
Corresponding Author: Li, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. ; Li, JC (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Correspondent Email: jcli05@imech.ac.cn
DOI: 10.1007/s11433-017-9093-y
DOC Type: Article
WOS Subject: Physics, Multidisciplinary
WOS Subject Extended: Physics
WOS Keyword Plus: DEBRIS FLOWS ; MODEL ; MASSES ; LANDSLIDES ; TOPOGRAPHY ; CHANNELS ; SURFACE ; ROE
WOS ID: WOS:000414563000009
ISSN: 1674-7348
Funder: National Natural Science Foundation of China(11602278 ; Strategic Priority Research Program of Chinese Academy of Sciences(XDB22040203) ; LA/IFS Foundation for Young Scientists ; 11432015)
Department: LMFS水环境流体力学(LEM)
Classification: 二类/Q1
Ranking: 1
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/71945
Appears in Collections:流固耦合系统力学重点实验室(2012-)_期刊论文

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Recommended Citation:
Wang XL,Li JC. A new solver for granular avalanche simulation: Indoor experiment verification and field scale case study[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2017-12-01,60(12).
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