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Experimental study on settlement of rod coral sand in stagnant water
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Chao Jiang1, Jie Chen1, 2, 3, *, Changbo Jiang1, 2, 3, Zhen Yao1, Hai Liang1, Zhiyuan Wu1, 2, 3
Haiyang Xuebao | 2023, 45(4) : 57 - 67
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Haiyang Xuebao | 2023, 45(4): 57-67
• Article •
Experimental study on settlement of rod coral sand in stagnant water
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Chao Jiang1, Jie Chen1, 2, 3, *, Changbo Jiang1, 2, 3, Zhen Yao1, Hai Liang1, Zhiyuan Wu1, 2, 3
Affiliations
  • 1School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
  • 2Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
  • 3Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, China
Published: 2023-03-31 doi: 10.12284/hyxb2023043
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The settling velocity is an important physical parameter of coral sand. Because of the rod coral sand is obviously different from other shapes of coral sand, it is not suitable to apply the settling velocity formula of the existing coral sand for calculation. The rod coral sand was selected to study the settling velocity and its influencing factors for single particle settlement experiment in stagnant water in this study. By analyzing the effects of different equivalent particle sizes and shape coefficients on the settling velocity of rod coral sand, it is found that the settling velocity of rod coral sand is strongly correlated with the diameter of the volume-equivalent sphere and Corey shape coefficient. Based on the experimental data, an empirical formula suitable for calculating the settling velocity of rod coral sand is deduced, which enriches the theory of coastal sediment.

rod coral sand  /  settling velocity  /  drag coefficient  /  shape coefficient
Chao Jiang, Jie Chen, Changbo Jiang, Zhen Yao, Hai Liang, Zhiyuan Wu. Experimental study on settlement of rod coral sand in stagnant water[J]. Haiyang Xuebao, 2023 , 45 (4) : 57 -67 . DOI: 10.12284/hyxb2023043
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Article Info
doi: 10.12284/hyxb2023043
  • Receive Date：2022-02-08
  • Online Date：2025-12-26
  • Published：2023-03-31
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  • Received：2022-02-08
  • Revised：2022-09-08
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Affiliations
    1School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
    2Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
    3Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, 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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