Deformation and Vibration of a Platanus Acerifolia Tree Leaf in Wind

被引：0

作者：

Shao, P. ^{[1
]}

Chen, Y. J. ^{[1
]}

机构：

[1] China Jiliang Univ, Inst Fluid Flow Measurement & Simulat, Hangzhou 310018, Peoples R China

来源：

RECENT PROGRESSES IN FLUID DYNAMICS RESEARCH - PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS | 2011年 / 1376卷

关键词：

tree leaf; reconfiguration; vibration; critical wind speeds; LEAVES;

D O I：

暂无

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The behavior of a twig-connected leaf in wind was investigated. With the variation of wind speed in the range of 0.7-11.5 m/s, the leaf experienced different patterns of deformation or vibration, and abrupt changes from one pattern to another occurred at critical wind speeds. For the case of the back side facing high speed wind stream, the leaf rolled up into conical shapes to reduce resistance and vibration. When the front side facing high wind, however, the leaf vibrated fiercely and no "reconfiguration" phenomenon observed.

引用

页数：3