IMHE OpenIR  > 山地灾害与地表过程重点实验室
Numerical investigation of particle size segregation in saturated granular flows using CFD-DEM coupling approach
Language英语
Cui, Kahlil F.E.1,2; Zhou, Gordon G.D.1,2
2019
Source PublicationDebris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation
Author of SourceAccess Limited Construction ; Association of Environmental and Engineering Geologists ; BGC Engineering Inc. ; et al. ; Geobrugg North America ; KANE Geotech Inc.
Pages2-9
meeting7th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment
Conference DateJune 10, 2019 - June 13, 2019
Conference PlaceGolden, CO
CountryUnited states
Contribution Rank1
AbstractTo solve the limitation of coarse spatial resolution of passive microwave surface soil moisture (SSM) product, many spatial downscaling methods has been proposed under the theoretic basis of the land surface temperature (LST)/vegetation index triangle space. However, in most studies, the topographic influences on the downscaling results is rarely analyzed but the impacts should be significant due to the strong effect of topographic changes on LST. To effectively solve this issue, a downscaling approach was developed in this study to disaggregate the Soil Moisture Active and Passive (SMAP) SSM product with the use of the Optical/Thermal infrared (TIR) observations from the Moderate-Resolution Imaging Spectro-radiometer (MODIS) onboard the Terra satellite for a typical mountain region located in the west of U.S. Two steps are included in the approach: (1) normalizing the terrain effect on LST and (2) downscaling passive SSM product based on a machine learning approach. The SNOTEL soil moisture observation network located in the study area was used to validate the downscaled SSM. © 2019 IEEE.
KeywordCFD-DEM interstitial pore fluid particle size segregation debris flows solid-fluid interaction
DOI10.25676/11124/173244
ISBN9780578510828
URL查看原文
Indexed ByEI
Accession numberAccession number;20200408088999
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33787
Collection山地灾害与地表过程重点实验室
Corresponding AuthorCui, Kahlil F.E.
Affiliation1.Key Laboratory of Mountain Hazards and Earth Surface Process/Institute of Mountain Hazards and Environment, Chinese Academy of Sciences(CAS), Chengdu, China;
2.University of Chinese Academy of Sciences, Beijing, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding 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
Cui, Kahlil F.E.,Zhou, Gordon G.D.. Numerical investigation of particle size segregation in saturated granular flows using CFD-DEM coupling approach[C]//Access Limited Construction, Association of Environmental and Engineering Geologists, BGC Engineering Inc., et al., Geobrugg North America, KANE Geotech Inc.,2019:2-9.
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