WITSEG sampler: a segmented sand sampler for wind tunnel test
文献类型：期刊论文
| 作者 | Dong, ZB; Sun, HY; Zhao, AG |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2004-04-02 |
| 卷号 | 59期号:1-4页码:119-129 |
| 关键词 | aeolian sand transport sampling efficiency flux profile |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2003.09.010 |
| 通讯作者 | Dong, ZB(zbdong@ns.lzb.ac.cn) |
| 英文摘要 | The flux profile of blowing sand is the reflection of a large number of sand particles moving in different trajectories. To describe the function of the flux profile requires measuring the flux of blown sand at different heights. A segmented sand sampler for wind tunnel study (WITSEG sampler) has been designed and evaluated in a wind tunnel. The sampler is 0.6 m high and sectioned into 60 openings that can measure the flux profile of blowing sand at 10-mm intervals. Special attention was paid in designing the sampler to its practicability and efficiency. For the convenience of use, the leading edge with inlets, sand chambers and side cover are removable. To maximize the sampling efficiency, the leading edge is wedge-shaped so that the width of the inlets is 5 mm, while the width of the sand chamber is 15 mm. Each sand chamber has two screened vents that are connected to a vertical vent to minimize the air pressure inside the sand chamber and maximize its efficiency. Wind tunnel evaluation shows that the sampler is good for measuring aeolian sand flux. Both the measured flux profile and total flux show a reasonably good agreement with the widely accepted flux profile function and sand transport equation. It has an overall efficiency of 0.91. The WITSEG sampler that can measure the detailed variation of blown sand flux with height proves to be a good tool for studying the flux profile of blowing sand. (C) 2003 Elsevier B.V. All rights reserved. |
| 收录类别 | ISTP ; SCI |
| WOS关键词 | VERTICAL-DISTRIBUTION ; FIELD CALIBRATION ; EROSION ; TRANSPORT ; TRAP |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000220456900011 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555597 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Dong, ZB |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lab Blown Sand Phys & Desert Environm, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, ZB,Sun, HY,Zhao, AG. WITSEG sampler: a segmented sand sampler for wind tunnel test[J]. GEOMORPHOLOGY,2004,59(1-4):119-129. |
| APA | Dong, ZB,Sun, HY,&Zhao, AG.(2004).WITSEG sampler: a segmented sand sampler for wind tunnel test.GEOMORPHOLOGY,59(1-4),119-129. |
| MLA | Dong, ZB,et al."WITSEG sampler: a segmented sand sampler for wind tunnel test".GEOMORPHOLOGY 59.1-4(2004):119-129. |
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来源：寒区旱区环境与工程研究所
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