个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:北京航空学院
学位:硕士
所在单位:能源与动力学院
电子邮箱:xmz@dlut.edu.cn
Numerical simulation of particle motion and heat transfer in a rotary kiln
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论文类型:期刊论文
发表时间:2016-01-01
发表刊物:POWDER TECHNOLOGY
收录刊物:SCIE、EI
卷号:287
页面范围:239-247
ISSN号:0032-5910
关键字:Rotary kiln; Granular flow kinetic theory; Heat transfer; Two-fluid model; Computational Fluid Dynamics (CFD)
摘要:A two-fluid approach and diverse heat transfer models are applied to a two-dimensional cross-section of a rotary kiln coupled with granular flow kinetic theory, which treats random granular motion as thermal molecular motion. The models are validated by comparison with the available experimental data. The results show that the bed surface velocity characteristic peak is located at the center and down the edges. The highest temperature is found at the bed surface and the temperature gradient in the bed is lower than that in the rotary kiln wall. The main factors that affect the temperature distribution are the initial gas temperature and rotational speed of the kiln. (C) 2015 Elsevier B.V. All rights reserved.