IMECH-IR  > 等离子体与燃烧中心(2009-2011)
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 PublicationParticuology
2010
Volume8Issue:4Pages:325-331
ISSN1674-2001
AbstractSand 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.
KeywordParticle Reynolds Stress Collision Stress Sand Bed Dem Transport Saltation Flux Wind Simulation
DOI10.1016/j.partic.2009.11.004
Indexed BySCI
Language英语
WOS IDWOS:000282354600004
WOS KeywordTRANSPORT ; SALTATION ; FLUX ; WIND ; SIMULATION
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Chemical ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [10532030] ; CAS
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/43321
Collection等离子体与燃烧中心(2009-2011)
Corresponding AuthorZhang 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.
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