Investigation of vertical velocity distribution in debris flows by PIV measurement
文献类型：期刊论文
| 作者 | Chen, Huayong1,2 ; Hu, Kaiheng1,2; Cui, Peng1,2,3; Chen, Xiaoqing1,2,3
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| 刊名 | GEOMATICS NATURAL HAZARDS & RISK
 |
| 出版日期 | 2017 |
| 卷号 | 8期号:2页码:1631-1642 |
| 关键词 | Vertical Velocity Distribution Debris Flow Particle Image Velocimetry (Piv) Flow Viscosity Log-law Model |
| ISSN号 | 1947-5705 |
| DOI | 10.1080/19475705.2017.1366955 |
| 通讯作者 | 胡凯衡 |
| 英文摘要 | Vertical 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000418899200085 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20731]  |
| 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 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
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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