Leaf roll-up and aquaplaning in strong winds and floods
msra(2008)
摘要
Flexible plants, fungi, and sessile animals are thought to reconfigure in the
wind and water to reduce the drag forces that act upon them. In strong winds,
for example, leaves roll up into cone shapes that reduce flutter and drag when
compared to paper cut-outs with similar shapes and flexibility. During flash
floods, herbaceous broad leaves aquaplane on the surface of the water which
reduces drag. Simple mathematical models of a flexible beam immersed in a
two-dimensional flow will also reconfigure in flow. What is less understood is
how the mechanical properties of a two-dimensional leaf in a three-dimensional
flow will passively allow roll up and aquaplaning. In this study, we film leaf
roll-up and aquaplaning in tree and vine leaves in both strong winds and water
flows.
更多查看译文
关键词
drag force,mathematical model,leaves,fluid dynamics,biomechanics,three dimensional
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要