Numerical simulation of wind flow over transverse and pyramid dunes
文献类型：期刊论文
| 作者 | Liu, Benli1,2; Qu, Jianjun1,2; Zhang, Weimin1,2; Qian, Guangqiang1 |
| 刊名 | JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
 |
| 出版日期 | 2011-08-01 |
| 卷号 | 99期号:8页码:879-888 |
| 关键词 | Computational fluid dynamics (CFD) Wind tunnel Transverse dune Pyramid dune |
| ISSN号 | 0167-6105 |
| DOI | 10.1016/j.jweia.2011.06.007 |
| 通讯作者 | Qu, Jianjun(qujianj@lzb.ac.cn) |
| 英文摘要 | Wind tunnel experiment and computational fluid dynamics (CFD) simulation of the flow past a scaled transverse dune model were performed, after which a validated numerical method was used to evaluate the flow characteristics over a full-scale pyramid dune. The dimensional effect of the CFD simulation was analyzed by comparing the results of two- and three-dimensional (2D and 3D) models with the same mesh method and flow condition. There was excellent agreement between the wind tunnel measurements and the 2D and 3D sectional CFD results, proving that the simplified numerical model could simulate the sectional flow pattern of dunes. However, the lateral inhomogeneity of the flow field is significant although with simple transverse dunes, and 3D simulation is required to capture the lateral inhomogeneity of flow patterns after the dune crest line. Survey data of the topography of a pyramid dune, located at the eastern foot of the Mingsha Megadune, Dunhuang, China, were used to build numerical geometry. The flow fields over this pyramid dune under three inlet flow directions are significantly different from each other, and the lateral variances of flow patterns at different vertical planes are profound. The location, shape, and magnitude of the reverse flow zone change corresponding to the dune topography. (C) 2011 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | ATMOSPHERIC BOUNDARY-LAYER ; COMPLEX TERRAIN ; AIR-FLOW ; RAINFALL DISTRIBUTION ; TURBULENT-FLOW ; SAND DUNES ; DESERT ; GEOMORPHOLOGY ; TOPOGRAPHY ; SEPARATION |
| WOS研究方向 | Engineering ; Mechanics |
| WOS类目 | Engineering, Civil ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000294394200008 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556580 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qu, Jianjun |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Dunhuang Gobi Desert Ecol & Environm Res Stn, Dunhuang 736200, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Benli,Qu, Jianjun,Zhang, Weimin,et al. Numerical simulation of wind flow over transverse and pyramid dunes[J]. JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS,2011,99(8):879-888. |
| APA | Liu, Benli,Qu, Jianjun,Zhang, Weimin,&Qian, Guangqiang.(2011).Numerical simulation of wind flow over transverse and pyramid dunes.JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS,99(8),879-888. |
| MLA | Liu, Benli,et al."Numerical simulation of wind flow over transverse and pyramid dunes".JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS 99.8(2011):879-888. |
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来源：寒区旱区环境与工程研究所
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