Numerical investigation of particle size segregation in saturated granular flows using CFD-DEM coupling approach
文献类型：会议论文
| 作者 | Cui, Kahlil F.E.1,2; Zhou, Gordon G.D.1,2 |
| 出版日期 | 2019 |
| 会议日期 | June 10, 2019 - June 13, 2019 |
| 会议地点 | Golden, CO |
| 关键词 | CFD-DEM interstitial pore fluid particle size segregation debris flows solid-fluid interaction |
| DOI | 10.25676/11124/173244 |
| 页码 | 2-9 |
| 国家 | United states |
| 英文摘要 | To 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. |
| 源文献作者 | Access Limited Construction ; Association of Environmental and Engineering Geologists ; BGC Engineering Inc. ; et al. ; Geobrugg North America ; KANE Geotech Inc. |
| 产权排序 | 1 |
| 会议录 | Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation
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| 语种 | 英语 |
| URL标识 | 查看原文 |
| ISBN号 | 9780578510828 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/33787]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Cui, Kahlil F.E. |
| 作者单位 | 1.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 |
| 推荐引用方式 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]. 见:. Golden, CO. June 10, 2019 - June 13, 2019. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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