水黾腿部在流体动力学情况下的特征。

Characteristics of water strider legs in hydrodynamic situations.

作者信息

Wei Pal Jen, Shen Yan Xing, Lin Jen Fin

机构信息

Department of Mechanical Engineering, Institute of Nanotechnology and Microsystems Engineering, National Cheng Kung University, Tainan 701, Taiwan.

出版信息

Langmuir. 2009 Jun 16;25(12):7006-9. doi: 10.1021/la900185a.

DOI:10.1021/la900185a

PMID:19366235

Abstract

This study investigated the forces and the cross-section images of a water strider's leg through experimental observations. In the vertical direction, the spring coefficients were found to be 0.6 N/m for the leg and 0.3 N/m for the water, which provide a water-treading stiffness of 0.2 N/m. In the horizontal directions, besides the alignment of the microsetae, the large cuticle forces were also related to the resistant side in a Wenzel state.

摘要

本研究通过实验观察，对水黾腿部的受力情况和横截面图像进行了研究。在垂直方向上，发现腿部的弹簧系数为0.6 N/m，水的弹簧系数为0.3 N/m，这提供了0.2 N/m的踏水刚度。在水平方向上，除了微刚毛的排列外，大的表皮力也与文泽尔状态下的阻力面有关。