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Investigation of vertical velocity distribution in debris flows by PIV measurement
Chen, Huayong1,2; Hu, Kaiheng1,2; Cui, Peng1,2,3; Chen, Xiaoqing1,2,3
2017
Source PublicationGEOMATICS NATURAL HAZARDS & RISK
ISSN1947-5705
EISSN1947-5713
Volume8Issue:2Pages:1631-1642
SubtypeArticle
AbstractVertical velocity distribution in some fluid-solid flows such as debris flows has not been well recognized and lacked a commonly accepted form. The particle image velocimetry (PIV) measurement system was employed to investigate the velocity distribution of high-viscosity fluid-solid flows. The velocity distribution was greatly affected by the particles due to the particle-particle collision and momentum exchange between the particle and fluid. Both of them show a similar increasing trend only in the range of the dimensionless flow depth from 0 to 0.7. In addition, based on the log-law model for sediment-laden flows, a modified model was proposed to predict vertical velocity distribution in debris flows. The results indicated that the calculated results were in good agreement with the experimental ones. The coefficient and index for the modified item was about 0.92 and -1/6, respectively.
KeywordVertical Velocity Distribution Debris Flow Particle Image Velocimetry (Piv) Flow Viscosity Log-law Model
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1080/19475705.2017.1366955
WOS Subject ExtendedGeology ; Meteorology & Atmospheric Sciences ; Water Resources
Indexed BySCI
WOS KeywordINTERNAL VELOCITY ; IMAGE VELOCIMETRY ; CROSS-SECTIONS ; STIRRED VESSEL ; BEHAVIOR
Language英语
Quartile3区
TOP
WOS SubjectGeosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS IDWOS:000418899200085
Funding OrganizationNational Natural Science Foundation of China(41520104002) ; CAS(QYZDY-SSW-DQC006) ; Foundation of Youth Innovation Promotion Association, Chinese Academy of Sciences(2017425)
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20731
Collection山地灾害与地表过程重点实验室
Corresponding AuthorHu, Kaiheng
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Sichuan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Chen, Huayong,Hu, Kaiheng,Cui, Peng,et al. Investigation of vertical velocity distribution in debris flows by PIV measurement[J]. GEOMATICS NATURAL HAZARDS & RISK,2017,8(2):1631-1642.
APA Chen, Huayong,Hu, Kaiheng,Cui, Peng,&Chen, Xiaoqing.(2017).Investigation of vertical velocity distribution in debris flows by PIV measurement.GEOMATICS NATURAL HAZARDS & RISK,8(2),1631-1642.
MLA Chen, Huayong,et al."Investigation of vertical velocity distribution in debris flows by PIV measurement".GEOMATICS NATURAL HAZARDS & RISK 8.2(2017):1631-1642.
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