Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds
文献类型：期刊论文
| 作者 | Lue, Ping; Dong, Zhibao |
| 刊名 | SEDIMENTARY GEOLOGY
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 234期号:1-4页码:116-119 |
| 关键词 | Near-surface layers Kinetic energy loss Horizontal momentum |
| ISSN号 | 0037-0738 |
| DOI | 10.1016/j.sedgeo.2010.12.007 |
| 通讯作者 | Lue, Ping(lvping@lzb.ac.cn) |
| 英文摘要 | In a blowing-sand system, the wind provides the driving forces for particle movement while the moving particles exert an opposing force on the wind by extracting its kinetic energy and momentum to sustain their motion. This extraction of kinetic energy and momentum by the moving particles can be characterized by the magnitude and rate of kinetic energy and horizontal momentum loss. In this study, we used the adaptation of wind velocity profiles to the movement of blowing sand based on the experimental data in a wind tunnel for different grain sizes and at different free-stream wind velocities, calculated the kinetic energy and horizontal momentum loss. The results suggest that the kinetic energy and horizontal momentum loss both increase with increasing height from the surface to a certain height, and then decrease with increasing height. In addition, both factors increase with increasing free-stream wind velocity, and decrease with increasing sand size. (C) 2010 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | VELOCITY PROFILE ; WIND-TUNNEL ; SALTATION ; SIMULATION ; GRAINS |
| WOS研究方向 | Geology |
| WOS类目 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000287559800009 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556499 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Lue, Ping |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lue, Ping,Dong, Zhibao. Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds[J]. SEDIMENTARY GEOLOGY,2011,234(1-4):116-119. |
| APA | Lue, Ping,&Dong, Zhibao.(2011).Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds.SEDIMENTARY GEOLOGY,234(1-4),116-119. |
| MLA | Lue, Ping,et al."Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds".SEDIMENTARY GEOLOGY 234.1-4(2011):116-119. |
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来源：寒区旱区环境与工程研究所
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