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Factors Influencing Bending Rigidity of Submerged Vegetation

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Abstract

The bending rigidity of submerged vegetation is closely related with vegetative drag force. This work aims at determining the effects of flow conditions and characteristics of vegetation on the bending rigidity of submerged vegetation. Based on the dimensional analysis method, the factors influencing the bending rigidity of individual submerged vegetation were analyzed. The relationship between the relative bending rigidity and its influencing factors was investigated by experimental observation, and a relative bending rigidity expression for submerged vegetation was obtained by means of multiple linear regression method. The results show that the submerged vegetation has three states under different inflow conditions, and the each critical relative bending rigidity of individual submerged vegetation was determined for the different states of submerged vegetation.

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Authors and Affiliations

  1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China

    Long-hua Wu & Xiao-li Yang

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  1. Long-hua Wu
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  2. Xiao-li Yang
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Correspondence to Long-hua Wu.

Additional information

Project supported by the Fundamental Research Funds for the Central Universities (Grant Nos. 2010B01514, 2010B01314) the National Natural Science Foundation of China (Grant No. 51179057).

Biography: WU Long-hua (1974-), Male, Ph. D., Associate Professor

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Wu, Lh., Yang, Xl. Factors Influencing Bending Rigidity of Submerged Vegetation. J Hydrodyn 23, 723–729 (2011). https://doi.org/10.1016/S1001-6058(10)60169-2

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  • DOI: https://doi.org/10.1016/S1001-6058(10)60169-2

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