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CFD investigation of dense phase pneumatic conveying at a pipeline enlargement 被引量:10

CFD investigation of dense phase pneumatic conveying at a pipeline enlargement
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摘要 The practice of stepping a conveying line is not new and there are many examples in industry; however, the details of the flow behaviour at the step have not been extensively studied. Three step geometries were modelled: an 'abrupt' step and two 'gradual' step-up geometries from a pipe bore of 75-100 ram. The flow behaviour of a single plug of material passing through these geometries was investigated using the 'Eulerian' CFD model from Fluent. Solids volume fractions were recorded at 0.01 s time steps at several point locations, and visualised throughout the pipe. The practice of stepping a conveying line is not new and there are many examples in industry; however, the details of the flow behaviour at the step have not been extensively studied. Three step geometries were modelled: an 'abrupt' step and two 'gradual' step-up geometries from a pipe bore of 75-100 ram. The flow behaviour of a single plug of material passing through these geometries was investigated using the 'Eulerian' CFD model from Fluent. Solids volume fractions were recorded at 0.01 s time steps at several point locations, and visualised throughout the pipe.
出处 《Particuology》 SCIE EI CAS CSCD 2012年第2期176-183,共8页 颗粒学报(英文版)
关键词 Pneumatic conveyingStepped pipelinePlug flowCFD Pneumatic conveyingStepped pipelinePlug flowCFD
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