Comment on drag and reconfiguration of macrophytes
Comment on drag and reconfiguration of macrophytes
复制标题
大型植物的拖曳和重构评论
DOI：
10.1111/j.1365-2427.2004.01296.x
复制
发表时间：
2005
影响因子：
2.7
通讯作者：
A. Sukhodolov
中科院分区：
文献类型：
--
作者：
A. Sukhodolov
总结
1. Sand-Jensen（2003）的实验方法，旨在定量研究淡水水生植物对流动水的物理强迫的响应，进行了讨论。具体而言，它强调，忽略的主要差异之间的润湿和正面面积的水生植物必然提供不可接受的药物系数估计的大误差。
2.在研究中采用的经验方法来概括数据（Sand-Jensen，2003年）存在维度问题，可能导致误导性结论。利用无量纲阻力系数值与无量纲雷诺数之间的关系，可以对该方法进行改进。
Summary
1. The experimental approach of Sand-Jensen (2003), designed to examine quantitatively the response of freshwater macrophytes to physical forcing by moving water, is discussed. Specifically, it is emphasised that neglecting the principal difference between the wetted and the frontal area of the aquatic plants necessarily provides unacceptably large errors in estimates of drug coefficient.
2. The empirical methodology employed in the study to generalise the data (Sand-Jensen, 2003) suffers from a dimensional problem and can potentially lead to misleading conclusions. The methodology could be improved by using the relationship between dimensionless values of drag coefficient and dimensionless Reynolds number.