Knowledge Management System of Institue of Mechanics, CAS
| Sand storms: CFD analysis of Reynolds stress and collision stress of particles near sand bed | |
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
| |
| Source Publication | Particuology (IF:2.616[JCR-2018],2.855[5-Year]) |
| 2010 | |
| Volume | 8Issue:4Pages:325-331 |
| ISSN | 1674-2001 |
| Abstract | 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. |
| Keyword | Particle Reynolds Stress Collision Stress Sand Bed Dem Transport Saltation Flux Wind Simulation |
| DOI | 10.1016/j.partic.2009.11.004 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000282354600004 |
| WOS Keyword | TRANSPORT ; SALTATION ; FLUX ; WIND ; SIMULATION |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Chemical ; Materials Science, Multidisciplinary |
| Funding Organization | National Natural Science Foundation of China [10532030] ; CAS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43321 |
| Collection | 等离子体与燃烧中心(2009-2011) |
| Corresponding Author | Zhang Y |
| Recommended Citation 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 029.pdf（345KB） | 开放获取 | -- | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment