Measuring the internal velocity of debris flows using impact pressure detecting in the flume experiment
文献类型：期刊论文
| 作者 | Yang Hongjuan1,2 ; Wei Fangqiang1; Hu Kaiheng1; Chernomorets, Sergey3; Hong Yong1; Li Xiaoyu1; Xie Tao1
|
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 8期号:2页码:109-116 |
| 关键词 | Internal velocity Measurement Debris flow Impact pressure |
| ISSN号 | 1672-6316 |
| 通讯作者 | 韦方强 |
| 英文摘要 | Measuring the internal velocity of debris flows is very important for debris flow dynamics research and designing debris flow control works. However, there is no appropriate method for measuring the internal velocity because of the destructive power of debris flow process. In this paper, we address this problem by using the relationship between velocity and kinetic pressure, as described by surface velocity and surface kinetic pressure data. Kinetic pressure is the difference of impact pressure and static pressure. The former is detected by force sensors installed in the flow direction at the sampling section. Observations show that static pressure can be computed using the formula for static water pressure by simply substituting water density for debris flow density. We describe the relationship between surface velocity and surface kinetic pressure using data from seven laboratory flume experiments. It is consistent with the relationship for single phase flow, which is the measurement principle of the Pitot tube. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | SURFACE VELOCITY ; FIELD |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000289004600001 |
| 公开日期 | 2012-12-13 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4511]  |
| 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, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China 3.Moscow MV Lomonosov State Univ, Fac Geog, Moscow, Russia |
| 推荐引用方式 GB/T 7714 | Yang Hongjuan,Wei Fangqiang,Hu Kaiheng,et al. Measuring the internal velocity of debris flows using impact pressure detecting in the flume experiment[J]. JOURNAL OF MOUNTAIN SCIENCE,2011,8(2):109-116. |
| APA | Yang Hongjuan.,Wei Fangqiang.,Hu Kaiheng.,Chernomorets, Sergey.,Hong Yong.,...&Xie Tao.(2011).Measuring the internal velocity of debris flows using impact pressure detecting in the flume experiment.JOURNAL OF MOUNTAIN SCIENCE,8(2),109-116. |
| MLA | Yang Hongjuan,et al."Measuring the internal velocity of debris flows using impact pressure detecting in the flume experiment".JOURNAL OF MOUNTAIN SCIENCE 8.2(2011):109-116. |
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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