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Study on the influence of rigid plant roots and stems on the maximum shearing characteristics of boundary layer under regular wave
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Xie Li1, Jie Chen1, 2, 3, 4, *, Changbo Jiang1, 2, 3, 4, Zhen Yao1, Yuanpin Luo1, Wanjiao Luo1
Haiyang Xuebao | 2021, 43(12) : 102 - 110
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Haiyang Xuebao | 2021, 43(12): 102-110
• Article •
Study on the influence of rigid plant roots and stems on the maximum shearing characteristics of boundary layer under regular wave
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Xie Li1, Jie Chen1, 2, 3, 4, *, Changbo Jiang1, 2, 3, 4, Zhen Yao1, Yuanpin Luo1, Wanjiao Luo1
Affiliations
  • 1School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
  • 2Key Laboratory 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
  • 4Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, Changsha 410114, China
Published: 2021-12-30 doi: 10.12284/hyxb2021181
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The characteristics of the maximum shear force in the boundary layer were studied based on the wave attenuation experiment of nearshore plants considering the influence of roots. The maximum shear force characteristics of the boundary layer under two plant models, root alone and combination of roots and stems, were investigated by using the formula of boundary layer velocity calculation with plant water flow under regular waves proposed by predecessors. The shear force variation along the path and the effect of plants on the shear force attenuation characteristics of the two models were analyzed, and the formulas of the attenuation coefficients were fitted. Studies have shown that when waves pass through the plant zone, the shear force increases to a certain extent and then decreases gradually. The reduction effect of plant on shear force increases with the increase of incident wave height, and the stem contributes to the reduction effect of root group on the maximum shear force of boundary layer, and the reduction coefficient ranges from 0.06 to 0.61. The fitted formula is more suitable for shallow water.

generalized plant model  /  boundary layer  /  shear force  /  root  /  stem  /  regular wave
Xie Li, Jie Chen, Changbo Jiang, Zhen Yao, Yuanpin Luo, Wanjiao Luo. Study on the influence of rigid plant roots and stems on the maximum shearing characteristics of boundary layer under regular wave[J]. Haiyang Xuebao, 2021 , 43 (12) : 102 -110 . DOI: 10.12284/hyxb2021181
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Article Info
doi: 10.12284/hyxb2021181
  • Receive Date：2020-07-10
  • Online Date：2026-02-26
  • Published：2021-12-30
Article Data
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History
  • Received：2020-07-10
  • Revised：2021-06-01
Funding
Affiliations
    1School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
    2Key Laboratory 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
    4Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, 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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