IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleA review of the debris flow dynamic models and numerical simulation
胡凯衡1,2; 崔鹏1,2; 田密1,2; 杨红娟1,2
Corresponding Author胡凯衡
Source Publication水利学报
Other Abstract

Debris flow is a kind of mass movement of viscous and highly concentrated fluid-solid mixture between hyper-concentration flow and landslide. It has both solid and liquidity properties, being shear-resistant like soil while flowing like a fluid. The existing debris-flow dynamic models, most of which originate from hydraulic or geotechnical models, can be classified into three types: continuum, discrete medium, and hybrid medium models with respect to constituent prototype and motion description. The former two are able to explain some phenomena related with debris flows to some extent. Traditional single-fluid and multi-fluid models are belong to the continuum model. The discrete medium model contains DEM (discrete element model) and kinetic model. The hybrid model is able to describe debris-flow features completely, but has more theoretical and computational problems than the other two. A debris-flow numerical model is composed of dynamic model, numerical scheme, computational trick, and handling of boundary and initial conditions. The important factors that strongly influence the simulation result in the numerical model include numerical algorithm,  rheological model,  topography data,  temporal and spatial resolutions etc. The trend in this field is to model the full process of debris flow, develop non-homogeneous computational model, take the effect of big boulder into account, and consider the mass exchange between the flow and bed.

Keyword泥石流 动力学 数值模拟 研究综述
Indexed ByEI ; 北大中文核心
Funding Organization中国科学院重点部署项目(KZZD-EW-05-01) ; 国家重点基础研究发展计划项目(2011CB409902) ; 中国科学院水利部成都山地灾害与环境研究所青年百人团队项目(110900K235)
Accession numberAccession number:20131616220787
Citation statistics
Document Type期刊论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
胡凯衡,崔鹏,田密,等. 泥石流动力学模型和数值模拟研究综述[J]. 水利学报,2012,43(S2):79-84.
APA 胡凯衡,崔鹏,田密,&杨红娟.(2012).泥石流动力学模型和数值模拟研究综述.水利学报,43(S2),79-84.
MLA 胡凯衡,et al."泥石流动力学模型和数值模拟研究综述".水利学报 43.S2(2012):79-84.
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