典型文献
DEM investigation on conveying of non-spherical particles in a screw conveyor
文献摘要：
Screw conveyors are extensively used in modern industry such as metallurgy,architecture and pharma-ceutical due to their high-efficiency in the transportation of granular materials.And substantial efforts have been devoted to the study of the screw conveyors.Numerical method is an effective way to study screw conveyor.However,previous studies have mainly focused in the regime of spherical particles while the in-depth investigations for non-spherical particles that should be the most encountered in practical applications are still limited.In view of the above situations,discrete element method(DEM),which has been widely accepted in simulating the discrete systems,is utilized to investigate the convey-ing process of non-spherical particles in a horizontal screw conveyor,with particles being modeled by super-ellipsoids.In addition,a wear model called SIEM(Shear Impact Energy Model)is incorporated into DEM to predict the wear of screw conveyor.The DEM simulation results demonstrate that the particle shape is influential for the flow behaviors of particles and the wear of conveyor.The conveying perfor-mance evaluated quantitatively of both mass flow rate and power consumption is subsequently obtained to investigate the effect of sphericity of particle with different operation parameters.Moreover,particle collision frequency and collision energy consumption are acquired to investigate the possible particle breakage between particles and screw blade.The comparisons between particle-particle collision and particle-wall collision reveal that particles with large shape index have more possibility to be damaged in particle-wall impingement.
文献关键词：
中图分类号：
作者姓名：
Hongyuan Sun;Huaqing Ma;Yongzhi Zhao
作者机构：
Institute of Process Equipment,College of Energy Engineering,Zhejiang University,Hangzhou 310027,China
文献出处：
引用格式：
[1]Hongyuan Sun;Huaqing Ma;Yongzhi Zhao-.DEM investigation on conveying of non-spherical particles in a screw conveyor)[J].颗粒学报（英文版）,2022(06):17-31
A类：
conveyor,Screw,conveyors,ellipsoids,SIEM
B类：
DEM,conveying,spherical,particles,screw,are,extensively,modern,industry,such,metallurgy,architecture,pharma,ceutical,due,their,high,efficiency,transportation,granular,materials,And,substantial,efforts,have,been,devoted,study,Numerical,method,effective,way,However,previous,studies,mainly,focused,regime,while,depth,investigations,that,should,most,encountered,practical,applications,still,limited,In,view,above,situations,discrete,element,which,has,widely,accepted,simulating,systems,utilized,investigate,process,horizontal,being,modeled,by,super,addition,wear,called,Shear,Impact,Energy,Model,incorporated,into,predict,simulation,results,demonstrate,shape,influential,flow,behaviors,perfor,mance,evaluated,quantitatively,both,mass,power,consumption,subsequently,obtained,sphericity,different,operation,parameters,Moreover,collision,frequency,energy,acquired,possible,breakage,between,blade,comparisons,wall,reveal,large,more,possibility,damaged,impingement
AB值：
0.50944
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