CFD PREDICTION OF THE MACRO-STRUCTRURE OF GAS-SOLID FLOW NEAR THE PARTICLES FEEDING IN A RISER FOR DRYING CONDITIONS

摘要：

　　The goal of this manuscript is to analyze the structure of air-solid diluted flow in a riser by 2D and 3D eulerian simulations (CFD,Fluent 6.3(○)).Fluidynamic simulations were performed considering drying conditions.Solid mass flow rate was acquired experimentally for spherical particles (1mm averaged diameter) in a riser (2 of diameter nominal).2D simulations indicated a core-annulus-wall structure with an unstable wall ring and also the presence of pulses of solid phase in flow.However,this structure wasn’t verified in 3D.The 3D simulation also presented higher concentration of solids in the opposite wall to feeding pipe.

关键词： coarse particles riser pneumatic conveying CFD feeding device

作者: T.F Pádua R.Béttega J.T.Freire

作者单位: DEQ-UFSCar Washington Luís road,Km235-SP-310,S?o Carlos-SP,13565-905,Brazil Chemical Engineering Federal University of Uberl(a)ndia,Jo(a)o Naves(A)vila,2121,Uberl(a)ndia-MG,384 DEQ-UFSCar Washington Luís road,Km235-SP-310,S(a)o Carlos - SP,13565-905,Brazil

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-7

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）