Flow Behaviors of Non-spherical Granules in Rectangular Hopper

金保升; 陶贺; 钟文琪

doi:10.1016/S1004-9541(09)60150-6

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Flow Behaviors of Non-spherical Granules in Rectangular Hopper

Updated：2026-01-06

- Flow Behaviors of Non-spherical Granules in Rectangular Hopper
- Flow Behaviors of Non-spherical Granules in Rectangular Hopper
- 中国化学工程学报（英文版） 2010年18卷第6期页码：931-939
- Affiliations：
  
  School of Energy & Environment, Southeast University,Nanjing,China,210096
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (50706007,50976025);the National Key Program of Basic Research in China (2010CB732206);the Foundation of Excellent Young Scholar of Southeast University (4003001039);the Collaboration Project of China and British (2010DFA61960)
- DOI：10.1016/S1004-9541(09)60150-6
  中图分类号：
- 纸质出版：2010
- Accepted：
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金保升, 陶贺, 钟文琪. Flow Behaviors of Non-spherical Granules in Rectangular Hopper[J]. 中国化学工程学报（英文版）, 2010,18(6):931-939.

JIN Baosheng, TAO He, ZHONG Wenqi. Flow Behaviors of Non-spherical Granules in Rectangular Hopper[J]. , 2010, 18(6): 931-939.
金保升, 陶贺, 钟文琪. Flow Behaviors of Non-spherical Granules in Rectangular Hopper[J]. 中国化学工程学报（英文版）, 2010,18(6):931-939. DOI： 10.1016/S1004-9541(09)60150-6.

JIN Baosheng, TAO He, ZHONG Wenqi. Flow Behaviors of Non-spherical Granules in Rectangular Hopper[J]. , 2010, 18(6): 931-939. DOI： 10.1016/S1004-9541(09)60150-6.

摘要

Abstract

Flow behaviors of four kinds of granular particles(i.e. sphere

ellipsoid

hexahedron and binary mixture of sphere and hexahedron) in rectangular hoppers were experimentally studied. The effects of granular shape and hopper structure on flow pattern

discharge fraction

mean particle residence time and tracer concentration distribution were tested based on the visual observation and particle tracer technique. The results show that particle shape affects significantly the flow pattern. The flow patterns of sphere

ellipsoid and binary mixture are all parabolic shape

and the flow pattern shows no significant difference with the change of wedge angle. The flowing zone becomes more sharp-angled with the increasing outlet size. The flow pattern of hexahedron is featured with straight lines. The discharge rates are in increasing order from hexahedron

sphere

binary mixture to ellipsoid. The discharge rate also increases with the wedge angle and outlet size. The mean particle residence time becomes shorter when the outlet size increases. The difference of mean particle residence time between the maximum and minimum values decreases as the wedge angle increases. The residence time of hexahedron is the shortest. The tracer concentration distribution of hexahedron at any height is more uniform than that of binary mixture. The tracer concentra-tion of sphere in the middle is lower than that near the wall

and the contrary tendency is found for ellipsoid particles.

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