interactive coupling between a tree and raindrops

ISCAS OpenIR

	interactive coupling between a tree and raindrops
	Yang Meng; Jiang Longsheng; Li Xiaosheng; Liu Youquan; Liu Xuehui; Wu Enhua
	2012
会议录名称	Computer Animation and Virtual Worlds
页码	267-277
收录类别	EI ; SCI
ISSN	1546-4261
部门归属	(1) State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing China; (2) Department of Computer and Information Science Faculty of Science and Technology University of Macau China; (3) Graduate University Chinese Academy of Sciences Beijing China; (4) Chang'An University Xi'an China
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.; 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.
关键词	Animation Deformation Forestry Navier Stokes Equations
学科领域	Computer Science
语种	英语
WOS记录号	WOS:000305607100014
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/15716
专题	中国科学院软件研究所
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],2012:267-277.