Characterization of the flowability dynamics of granular material flowing down a narrow channel
作者机构：Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of EducationEast China University of Science and TechnologyP.O.Box 272Shanghai 200237China Shanghai Engineering Research Center of Coal GasificationEast China University of Science and TechnologyP.O.Box 272Shanghai 200237China Ningbo Ruiling Institute for Energy and Environment SolutionsNingbo 315500China
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2020年第18卷第6期
页 面：72-82页
核心收录：
学科分类：080704[工学-流体机械及工程] 0817[工学-化学工程与技术] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）]
基 金：the National Natural Science Foundation of China(U1402272) the Fundamental Research Funds for the Central Universities funds from the Shanghai Engineering Research Center of Coal Gasification(18DZ2283900)
主 题：Dynamic characterization Granular flow Velocity profile Flowability Channel
摘 要：The flowability of granular material is commonly determined from shear cell tests,but in the real world,the granular flow is quite different in many *** this paper,the flowabilities in a narrow channel of five different granular materials were *** flow parameters of the granular flows were determined to classify the flowabil让*** flow surface velocities and flow heights and thicknesses were measured,and it was found that the mean shear rates in the linear portions of the velocity profiles in crease with both flow rates and incli nation.A universal parameter,the ratio of the sine of the inclin ation to the shear rate in the linear part of the velocity profile,is proposed as a *** constant is independent of particle *** addition,a flowability parameter,the ratio of the mean shear rate to the cosine of the inclination,is proposed to characterize the friction between the particles in the flowing granular material.
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