Record number :
401527
Title of article :
A predictor-corrector technique for visualizing unsteady flow
Author/Authors :
Banks، نويسنده , , D.C.، نويسنده , , Singer، نويسنده , , B.A.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1995
Pages :
13
From page :
151
To page :
163
Abstract :
We present a method for visualizing unsteady flow by displaying its vortices. The vortices are identified by using a vorticity-predictor pressure-corrector scheme that follows vortex cores. The cross-sections of a vortex at each point along the core can be represented by a Fourier series. A vortex can be faithfully reconstructed from the series as a simple quadrilateral mesh, or its reconstruction can be enhanced to indicate helical motion. The mesh can reduce the representation of the flow features by a factor of one thousand or more compared with the volumetric dataset. With this amount of reduction it is possible to implement an interactive system on a graphics workstation to permit a viewer to examine, in three dimensions, the evolution of the vortical structures in a complex, unsteady flow.
Keywords :
feature extraction. , Vortex identification , numericalflow visualization , numerical flow animation , vortex core , vortex visualization , data reduction
Journal title :
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Serial Year :
1995
Link To Document :
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