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Flow Characteristics Analysis of Particles in Pneumatic Conveying with Tapered Pipeline Based on CFD-DEM
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Yanjun HOU1, Qinghui WANG1, Jiawei ZHOU1, Xiangyu YAN1, Zebing ZHENG1, Xiaohui LIU2
Mining and Metallurgical Engineering | 2023, 43(6) : 6 - 10
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Mining and Metallurgical Engineering | 2023, 43(6): 6-10
• MINING •
Flow Characteristics Analysis of Particles in Pneumatic Conveying with Tapered Pipeline Based on CFD-DEM
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Yanjun HOU1, Qinghui WANG1, Jiawei ZHOU1, Xiangyu YAN1, Zebing ZHENG1, Xiaohui LIU2
Affiliations
  • 1.School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, Henan, China
  • 2.Chang'an University, Xi'an 710064, Shanxi, China
Published: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.002
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In order to clarify the influence of geometric parameters of tapered pipeline on particle flow characteristics in pneumatic conveying, numerical simulation was conducted for horizontal pipelines with 5 kinds of taper ratio and taper length by adopting CFD-DEM coupling method. Influence of geometric parameters of taper ratio and taper length on particle velocity, pressure loss and Froude number in tapered pipeline was investigated. The results show that tapered pipe can reduce particle velocity. As taper length and taper ratio increase, particle velocity increases first and then decreases. And the tapered pipe can also reduce pressure drop in pipeline. As taper ratio and taper length increase, pressure loss in pipeline increases. The higher the taper ratio, the smaller the Froude number in tapered pipe is. As taper length increases, the Froude number decreases more slowly.

pipeline transportation  /  pneumatic conveying  /  pneumatic filling  /  horizontal tapered pipe  /  gas-solid two-phase flow  /  flow characteristics  /  CFD-DEM  /  taper ratio  /  taper length
Yanjun HOU, Qinghui WANG, Jiawei ZHOU, Xiangyu YAN, Zebing ZHENG, Xiaohui LIU. Flow Characteristics Analysis of Particles in Pneumatic Conveying with Tapered Pipeline Based on CFD-DEM[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 6 -10 . DOI: 10.3969/j.issn.0253-6099.2023.06.002
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Year 2023 volume 43 Issue 6
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.06.002
  • Receive Date：2023-06-09
  • Online Date：2026-03-05
  • Published：2023-12-01
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  • Received：2023-06-09
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Affiliations
    1.School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, Henan, China
    2.Chang'an University, Xi'an 710064, Shanxi, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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