Sand storms: CFD analysis of Reynolds stress and collision stress of particles near sand bed
文献类型：期刊论文
| 作者 | Zhang Y(张宇); Yang JC(杨杰程) ; Liu DY(刘大有); Wei XL(魏小林); Yu LX(余立新); Zhang Y
|
| 刊名 | Particuology
 |
| 出版日期 | 2010 |
| 卷号 | 8期号:4页码:325-331 |
| 通讯作者邮箱 | zhangyu@imech.ac.cn |
| 关键词 | Particle Reynolds Stress Collision Stress Sand Bed Dem Transport Saltation Flux Wind Simulation |
| ISSN号 | 1674-2001 |
| 通讯作者 | Zhang Y |
| 中文摘要 | Sand storm is a serious environmental threat to humans. Sand particles are transported by saltation and suspension, causing soil erosion in one place and deposition in another. In order to prevent and predict sand storms, the causes and the manners of particle motions must be studied in detail. In this paper a standard k-epsilon model is used for the gas phase simulation and the discrete element method (DEM) is used to predict the movements of particles using an in-house procedure. The data are summarized in an Eulerian-Eulerian regime after simulation to get the statistical particle Reynolds stress and particle collision stress. The results show that for the current case the Reynolds stress and the air shear stress predominate in the region 20-250 mm above the initial sand bed surface. However, in the region below 3 mm, the collision stress must be taken into account in predicting particle movement. (C) 2010 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| 类目[WOS] | Engineering, Chemical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 关键词[WOS] | TRANSPORT ; SALTATION ; FLUX ; WIND ; SIMULATION |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10532030]; CAS |
| 语种 | 英语 |
| WOS记录号 | WOS:000282354600004 |
| 公开日期 | 2011-03-01 ; 2011-03-30 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/43321]  |
| 专题 | 力学研究所_等离子体与燃烧中心(2009-2011) |
| 通讯作者 | Zhang Y |
| 推荐引用方式 GB/T 7714 | Zhang Y,Yang JC,Liu DY,et al. Sand storms: CFD analysis of Reynolds stress and collision stress of particles near sand bed[J]. Particuology,2010,8(4):325-331. |
| APA | 张宇,杨杰程,刘大有,魏小林,余立新,&Zhang Y.(2010).Sand storms: CFD analysis of Reynolds stress and collision stress of particles near sand bed.Particuology,8(4),325-331. |
| MLA | 张宇,et al."Sand storms: CFD analysis of Reynolds stress and collision stress of particles near sand bed".Particuology 8.4(2010):325-331. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。