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A Study on Formation of the Unstructured Adaptive Grid with Moving Boundaries(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2000年05期
Page:
406-409
Research Field:
Publishing date:

Info

Title:
A Study on Formation of the Unstructured Adaptive Grid with Moving Boundaries
Author(s):
WuDehong ZhengLi GengJihui LiHongzhi
School of Power Engineering,NUST,Nanjing 210094
Keywords:
grids rectif icat ion of distortion adapt iv ity unst ructured grid moving boundaries Delaunay method
PACS:
-
DOI:
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Abstract:
During simulat ion of flows w ith moving boundaries, grid deformation caused by mov ing boundaries w ill have signif icant effect on t ime step and precision. This paper prov ides a method to correct the deformed grids. After some grid generat ion methods are discussed, i. e. the advancing f ront method and the Delaunay method, the process of 2-dimensional grid generation by using automat ic point creat ion Delaunay method and g rid adapt ivity is presented. Then the problem of g rid deformation for t ransient compressible f low s w ith mov ing boundaries is feasibly solved by using a grid regenerat ion technique.

References:

1 Prober t E J, Hassan O, Morgan K1An adaptive finite element method for transient compr essible flows with moving boundar ies. I nt J for Numb Meth in Eng , 1991, 32: 751~ 765
2 Cr istini V, Btawzdziew icz J, Lo ew enberg M. Drop breakup in three- dimensional viscous flows.Physics Fluids, 1998, 10( 8) : 1 781~ 1 783
3 Doug herty C F, Benek J A, Steger J L. On application of chimera grid schemes to sto re separation.NASA Repo rt ARC 255, 1985
4 Hassan O, Probert E J, Morg an K. Unstructured mesh pr ocedures for the simulation of three- dimensional transient compr essible inviscid flows w ith moving boundar y components. Int J for Numb Met h in Fluids, 1998, 27: 41~ 55
5 Lo hner R. Pro gress in gr id generation via the advancing front technique. Engineer ing with Computers,1996, 12: 186~ 210
6 Bow yer A1 Computing dir ichlet tessellations. T he Computer Journal, 1981, 24( 2) : 162~ 166
7 Weather ill N P, Hassan O. Efficient three- dimensional delaunay triang ulation w ith automat ic po int creation and imposed boundary constr aints. Int J fo r Numb Meth in Eng, 1994, 37: 2 005~ 2 039

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Last Update: 2013-03-25