Surface smoothing and quality improvement of quadrilateral/hexahedral meshes with geometric flow

doi:10.1002/cnm.1067

CSpace

	Surface smoothing and quality improvement of quadrilateral/hexahedral meshes with geometric flow
	Zhang, Yongjie 1,2; Bajaj, Chandrajit 1,2; Xu, Guoliang 3
	2009
发表期刊	COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING
ISSN	1069-8299
卷号	25 期号:1 页码:1-18
摘要	This paper describes an approach to smooth the surface and improve the quality of quadrilateral/hexahedral meshes with feature preserved using geometric flow. For quadrilateral surface meshes, the surface diffusion flow is selected to remove noise by relocating vertices in the normal direction, and the aspect ratio is improved with feature preserved by adjusting vertex positions in the tangent direction. For hexahedral meshes, besides the Surface vertex movement in the normal and tangent directions, interior vertices are relocated to improve the aspect ratio. Our method has the properties of noise removal, feature preservation and quality improvement of quadrilateral/hexahedral meshes, and it is especially suitable for biomolecular meshes because the surface diffusion flow preserves sphere accurately if the initial surface is close to a sphere. Several demonstration examples are provided front a wide variety of application domains. Some extracted meshes have been extensively used in finite element simulations. Copyright (c) 2007 John Wiley & Sons, Ltd.
关键词	quadrilateral/hexahedral mesh surface smoothing feature preservation quality improvement geometric flow
DOI	10.1002/cnm.1067
语种	英语
WOS研究方向	Engineering ; Mathematics
WOS类目	Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
WOS记录号	WOS:000262273800001
出版者	JOHN WILEY & SONS LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/7001
专题	中国科学院数学与系统科学研究院
通讯作者	Bajaj, Chandrajit
作者单位	1.Univ Texas Austin, Dept Comp Sci, Computat Visualizat Ctr, Austin, TX 78712 USA 2.Univ Texas Austin, Inst Computat Engn & Sci, Austin, TX 78712 USA 3.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yongjie,Bajaj, Chandrajit,Xu, Guoliang. Surface smoothing and quality improvement of quadrilateral/hexahedral meshes with geometric flow[J]. COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING,2009,25(1):1-18.
APA	Zhang, Yongjie,Bajaj, Chandrajit,&Xu, Guoliang.(2009).Surface smoothing and quality improvement of quadrilateral/hexahedral meshes with geometric flow.COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING,25(1),1-18.
MLA	Zhang, Yongjie,et al."Surface smoothing and quality improvement of quadrilateral/hexahedral meshes with geometric flow".COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING 25.1(2009):1-18.