The steady and vibrating statuses of tulip tree leaves in wind

The study of tree leaf aerodynamics is useful to tree protection, solar panel design and development of new power generation technology. 73 tulip leaves were tested in suspended condition and with front as well as back surface of the lamina facing wind. Three types of vibrating statuses, two types o...

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Main Authors: Yuanyuan Zhu, Chuanping Shao
Format: Article
Language:English
Published: Elsevier 2017-01-01
Series:Theoretical and Applied Mechanics Letters
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2095034916300885
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author Yuanyuan Zhu
Chuanping Shao
author_facet Yuanyuan Zhu
Chuanping Shao
author_sort Yuanyuan Zhu
collection DOAJ
description The study of tree leaf aerodynamics is useful to tree protection, solar panel design and development of new power generation technology. 73 tulip leaves were tested in suspended condition and with front as well as back surface of the lamina facing wind. Three types of vibrating statuses, two types of steady statuses, and five critical wind speeds were observed. The existence probabilities of the statuses and criticals, the probability density distribution of every critical over the range of wind speed 0–27 m/s, and the expected values of the criticals were obtained by statistics. The critical Reynolds number, defined by critical wind speed and lamina length, shows an increasing trend with increasing the lamina area or length to width ratio of the lamina, but it shows no trend of increase or decrease with increasing the length ratio of petiole to lamina.
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spelling doaj.art-e9711c9dfe0b4ec68339569d5b9cd5dd2022-12-22T02:04:52ZengElsevierTheoretical and Applied Mechanics Letters2095-03492017-01-0171303410.1016/j.taml.2016.12.002The steady and vibrating statuses of tulip tree leaves in windYuanyuan ZhuChuanping ShaoThe study of tree leaf aerodynamics is useful to tree protection, solar panel design and development of new power generation technology. 73 tulip leaves were tested in suspended condition and with front as well as back surface of the lamina facing wind. Three types of vibrating statuses, two types of steady statuses, and five critical wind speeds were observed. The existence probabilities of the statuses and criticals, the probability density distribution of every critical over the range of wind speed 0–27 m/s, and the expected values of the criticals were obtained by statistics. The critical Reynolds number, defined by critical wind speed and lamina length, shows an increasing trend with increasing the lamina area or length to width ratio of the lamina, but it shows no trend of increase or decrease with increasing the length ratio of petiole to lamina.http://www.sciencedirect.com/science/article/pii/S2095034916300885Tree leavesReconfigurationVibrationCritical wind speed
spellingShingle Yuanyuan Zhu
Chuanping Shao
The steady and vibrating statuses of tulip tree leaves in wind
Theoretical and Applied Mechanics Letters
Tree leaves
Reconfiguration
Vibration
Critical wind speed
title The steady and vibrating statuses of tulip tree leaves in wind
title_full The steady and vibrating statuses of tulip tree leaves in wind
title_fullStr The steady and vibrating statuses of tulip tree leaves in wind
title_full_unstemmed The steady and vibrating statuses of tulip tree leaves in wind
title_short The steady and vibrating statuses of tulip tree leaves in wind
title_sort steady and vibrating statuses of tulip tree leaves in wind
topic Tree leaves
Reconfiguration
Vibration
Critical wind speed
url http://www.sciencedirect.com/science/article/pii/S2095034916300885
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