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Alternative TitleA review of study on drag reduction of viscous debris-flow residual layer
刘晶晶1,2,3; 李泳1,2
Corresponding Author刘晶晶
Source Publication泥沙研究
Other Abstract



Key theoretical topics of study on viscous debris-flow are resistance and velocity. However it is so difficult to calculate movement resistance accurately,which also restrict the establishment and application of velocity and discharge formula,because of complex movement and various flow patterns of viscous debris-flow. Previous studies focus on internal resistance due to the solid-liquid interaction,but the studies in bed hindrance are uncommon. This paper introduces the typical processes in debris-flow movement — “paving process”,describes drag-reduction phenomenon caused by residual layer,provides an overview of the studies in resistance based on debris-flow motion models,and summarizes the possible impact parameters of drag reduction and common calculation methods of bed resistance. The study shows that the complex drag-reduction effect caused by residual layer is so important,which cannot be ignored in motion study,especially in highspeed motion of viscous debris flow. However,the motion models and hydraulics formula cannot provide a characterization of bed resistance changes in viscous debris-flow movement. Based on the research status and available technologies at present,the future work is proposed: (1) recognizing the formation and development of residual layer in paving process; (2) exploring the drag-reduction mechanism by residual layer; (3) studying the residual layer bed-resistance formula.

Keyword黏性泥石流 铺床 残留层 减阻 床面阻力
Subject AreaP642.23
Indexed ByCSCD ; 北大中文核心
Funding Organization中国科学院西部之光重点项目(Y5R2040040) ; 水文水资源与水利工程科学国家重点实验室开放基金项目(2015491011)
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
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
刘晶晶,李泳. 黏性泥石流残留层的床面减阻研究综述[J]. 泥沙研究,2016,000(3):72-80.
APA 刘晶晶,&李泳.(2016).黏性泥石流残留层的床面减阻研究综述.泥沙研究,000(3),72-80.
MLA 刘晶晶,et al."黏性泥石流残留层的床面减阻研究综述".泥沙研究 000.3(2016):72-80.
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