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Numerical Simulation of Characteristics of Motion for Polymetallic Nodules in Swirling Flow During Hydraulic Lifting
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Yun CHEN1, 2, Yanlian DU1, 3, Meng LI1, 3, Dong LIANG1, 2, Yijun SHEN1, 2
Mining and Metallurgical Engineering | 2024, 44(2) : 13 - 17
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Mining and Metallurgical Engineering | 2024, 44(2): 13-17
• MINING •
Numerical Simulation of Characteristics of Motion for Polymetallic Nodules in Swirling Flow During Hydraulic Lifting
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Yun CHEN1, 2, Yanlian DU1, 3, Meng LI1, 3, Dong LIANG1, 2, Yijun SHEN1, 2
Affiliations
  • 1.State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, Hainan, China
  • 2.College of Mechanical and Electrical Engineering, Hainan University, Haikou 570228, Hainan, China
  • 3.College of Information and Communication Engineering, Hainan University, Haikou 570228, Hainan, China
Published: 2024-04-01 doi: 10.3969/j.issn.0253-6099.2024.02.004
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The lifting of polymetallic nodules was simulated by using a CFD-DEM coupling approach, and the influence of different swirling flow on hydraulic lifting of polymetallic nodules in vertical pipelines was explored. The results show that as swirl ratio increases, the intensity of swirl will be enhanced significantly, and both the maximum fluid velocity and the average axial velocity of particle group will increase. It is found that intensity of swirl can bring obvious impact to the distribution of particles with different velocity in the pipe, showing that particles with high velocity are gradually distributed around the pipe wall, while the particles with low velocity in the center of the pipe. Swirling flow can reduce the local concentration of particles, which is beneficial to reducing the risk of pipeline blockage due to higher concentration of particles caused by retention effect.

deep sea mining  /  polymetallic nodules  /  liquid-solid two-phase flow  /  hydraulic lifting  /  pipeline transportation  /  swirl ratio  /  CFD-DEM coupling
Yun CHEN, Yanlian DU, Meng LI, Dong LIANG, Yijun SHEN. Numerical Simulation of Characteristics of Motion for Polymetallic Nodules in Swirling Flow During Hydraulic Lifting[J]. Mining and Metallurgical Engineering, 2024 , 44 (2) : 13 -17 . DOI: 10.3969/j.issn.0253-6099.2024.02.004
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doi: 10.3969/j.issn.0253-6099.2024.02.004
  • Receive Date：2023-10-12
  • Online Date：2026-03-19
  • Published：2024-04-01
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  • Received：2023-10-12
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Affiliations
    1.State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, Hainan, China
    2.College of Mechanical and Electrical Engineering, Hainan University, Haikou 570228, Hainan, China
    3.College of Information and Communication Engineering, Hainan University, Haikou 570228, Hainan, 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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