Mixing and heat transfer of binary mixtures of monodispersed spherical particles with different densities and thermal diffusivities

作     者：Qing Wang Bowen Liu Qing Wang;Bowen Liu

作者机构：Engineering Research Centre of Oil Shale Comprehensive UtilizationMinistry of EducationNortheast Electric Power UniversityJilin 132012China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2021年第19卷第5期

页      面：118-130页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：the support provided by the National Natural Science Foundation of China(Grant Nos.51676032 and 51276034) 

主　　题：Rotating drums Discrete element method Mixing Heat conduction Heat radiation 

摘      要：Mixing and heat transfer among particles in rotating drums are widely applied in numerous industrial ***,mixing and heat transfer occur ***,the interrelationship between mixing and heat transfer must be investigated for industrial *** this study,the radial mixing and heat transfer of spherical granular materials(3 mm)with various properties in batch rotating drums are investigated numerically using the discrete element *** evolution of mixing and heat transfer characteristics with rotation speed is analyzed from the perspective of time and number of revolutions,*** results indicate that,depending on the physical parameters and thermal properties of particles,the mixing quality does not always accurately reflect the heat transfer *** binary granular beds of monodispersed spherical particles with different densities and thermal diffusivities,the main heat transfer mechanism is related to the ratio of the thermal conductivity of the particles to that of the fluid.