Magnetic resonance studies of a gas-solids fluidised bed:Jet-jet and jet-wall interactions

查看全文 作　　者：Meenal [1]Pore;Daniel [1]J.Holland;Thusara [1]C.Chandrasekera;Christoph [2]R.Müller;Andrew [1]J.Sederman;John [1]S.Dennis;Lynn [1]F.Gladden;John [1]F.Davidson

机构地区：[1]Department of Chemical Engineering and Biotechnology,University of Cambridge,Pembroke Street,Cambridge,CB2 3RA,UK;[2]Department of Mechanical and Process Engineering,ETH Zurich,Sonneggstrasse 3,8092 Zurich,Switzerland

出　　处：《Particuology》索引2010年第8卷第6期,共6页

基　　金：the Engineering and Physical Sciences Research Council(Grant number EP/F041772/1) 摘　　要：Magnetic resonance imaging(MRI)gave images of air jets from orifices in the distributor plate of a bed of poppy seeds.Attention focused on two features:(1)The interaction between nearby vertical jets from two,three or four orifices;(2)Wall effects,where one or more orifices created vertical jets near the vertical wall of the cylinder containing the particle bed.The results show that nearby jets are mutually attracted.Likewise a jet near a wall bends out of the vertical,towards the wall.For multiple adjacent jets,the jet lengths show dependence on orifice layout:the lengths are in reasonable agreement with published measurements,by other methods,for single jets.The MRI gives three-dimensional images of the single jets and of multiple jets,separate or merging. 关键词：空气射流相互作用固体核磁共振流化床喷气气体气孔长度三维图像

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Magnetic resonance studies of a gas-solids fluidised bed:Jet-jet and jet-wall interactions

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