interactive coupling between a tree and raindrops

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	interactive coupling between a tree and raindrops
	Yang Meng ; Jiang Longsheng ; Li Xiaosheng ; Liu Youquan ; Liu Xuehui ; Wu Enhua
	2012
关键词	Animation Deformation Forestry Navier Stokes equations
页码	267-277
中文摘要	This paper presents a novel approach for simulating the dynamic coupling between a tree and raindrops based on physical deformation and fluid simulation. By the approach, tree animation in the rain can be simulated in a two-resolution way: branch motion and leaf motion. The branch is represented by the Euler-Bernoulli beam model, and the leaf petiole is represented by the three-prism elastic model. Interaction coupling liquid motion on the hydrophilic surface with a flexible petiole is well implemented by a special design. To simplify the computation process, instead of the computation-intensive three-dimensional Navier-Stokes equations, shallow water equations are used to simulate the water dynamics together with the whole leaf deformation. Simulation has been also made to various phenomena incurred from the interactive coupling. These include, among others, part of impacting raindrops splashing into the air with the remaining flowing along the slant of the leaf and merging into larger ones or hanging on the blade boundary, with the leaf rebounding and vibrating after the drops fall off the leaf. A level-of-detail approach is exploited to accelerate rendering in views of different distances. The experimental results illustrate that the approach can be applied to efficiently generate realistic details of the interactive coupling between a tree and raindrops. Copyright © 2012 John Wiley & Sons, Ltd.
英文摘要	This paper presents a novel approach for simulating the dynamic coupling between a tree and raindrops based on physical deformation and fluid simulation. By the approach, tree animation in the rain can be simulated in a two-resolution way: branch motion and leaf motion. The branch is represented by the Euler-Bernoulli beam model, and the leaf petiole is represented by the three-prism elastic model. Interaction coupling liquid motion on the hydrophilic surface with a flexible petiole is well implemented by a special design. To simplify the computation process, instead of the computation-intensive three-dimensional Navier-Stokes equations, shallow water equations are used to simulate the water dynamics together with the whole leaf deformation. Simulation has been also made to various phenomena incurred from the interactive coupling. These include, among others, part of impacting raindrops splashing into the air with the remaining flowing along the slant of the leaf and merging into larger ones or hanging on the blade boundary, with the leaf rebounding and vibrating after the drops fall off the leaf. A level-of-detail approach is exploited to accelerate rendering in views of different distances. The experimental results illustrate that the approach can be applied to efficiently generate realistic details of the interactive coupling between a tree and raindrops. Copyright © 2012 John Wiley & Sons, Ltd.
收录类别	EI ; SCI
会议录	Computer Animation and Virtual Worlds
学科主题	Computer Science
语种	英语
ISSN号	1546-4261
WOS记录号	WOS:000305607100014
内容类型	会议论文
源URL	[http://ir.iscas.ac.cn/handle/311060/15716]
专题	软件研究所_软件所图书馆_会议论文
推荐引用方式 GB/T 7714	Yang Meng,Jiang Longsheng,Li Xiaosheng,et al. interactive coupling between a tree and raindrops[C]. 见:.