植被弯曲形态对水流的阻力效应研究

李磊; 王伟杰; 董飞; 黄爱平; 冯达骞; 徐宇轩

doi:10.20040/j.cnki.1000-7709.2024.20230647

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植被弯曲形态对水流的阻力效应研究

更新时间：2026-07-09

- 植被弯曲形态对水流的阻力效应研究
- Vol. 42, Issue 4, Pages: 72-75(2024)
- 作者机构：
  
  1. 河北工程大学水利水电学院
  2. 中国水利水电科学研究院水生态环境研究所
  3. 水利部京津冀水安全保障重点实验室
  4. 华北水利水电大学水利学院
- 作者简介：
- 基金信息：
- DOI：10.20040/j.cnki.1000-7709.2024.20230647
  CLC： TV133
- Published：2024
- 稿件说明：
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李磊, 王伟杰, 董飞, et al. 植被弯曲形态对水流的阻力效应研究[J]. 2024, 42(4): 72-75.
DOI：

李磊, 王伟杰, 董飞, et al. 植被弯曲形态对水流的阻力效应研究[J]. 2024, 42(4): 72-75. DOI： 10.20040/j.cnki.1000-7709.2024.20230647.

摘要

植被化生态河道的阻力特性是环境水力学的研究热点之一。为探寻柔性植被不同弯曲倾角下的阻力特性，利用圆柱铝棒进行弯曲模拟柔性植被，并采用测力装置，对不同倾角状态下圆柱铝棒及流速范围开展室内水槽试验，首先研究直立圆柱铝棒阻力与流速之间的关系，得到的拖曳力系数C

符合已有研究，同时验证了测力装置的可靠性；随后开展不同倾角下的植被阻力试验，得到Vogel数随着倾角的减小呈逐渐降低最后突增的趋势。当植被弯曲时，已有的刚性直立植被丛模型不再适用，通过引入与倾角相关参数C

对模型进行修正，显著提高了模拟精准度。研究结果可为生态植被化河道水力学精准模拟提供技术支撑。

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