Paper Info
Title
Local Exact Particle Tracing On Unstructured Grids
Abstract
For analyzing and interpreting results of flow simulations, particle tracing is a well established visualization method. In addition, it is a preliminary step for more advanced techniques such as line integral convolution.For interactive exploration of large data sets, a very efficient and reliable particle tracing method is needed. For wind channel experiments or flight simulations, large unstructured computational grids have become common practice. Traditional approachs, based on numerical integration methods of ordinary differential equations however fail to deliver sufficiently accurate path calculation at the speed required for interactive use.In this paper we extend the local exact approach of Nielson and Jung in such a way that it can be used for interactive particle tracing in large data sets of steady flow simulation experiments. This will be achieved by sophisticated preprocessing using additional memory. For further visual enhancement of the streamline we construct an implicitly defined smooth Bezier curve that is used for ray tracing. This allows us to visualize additional scalar values of the simulation as attributes to the trajectory and enables the display of high-quality smooth curves without creating any visualization geometry and providing a good impression of the spatial situation at the same time.
Year
DOI
Venue
2003
10.1111/1467-8659.00655
COMPUTER GRAPHICS FORUM
Keywords
Field
DocType
numeric integration methods, particle tracing, visualization for computational fluid dynamics, raytracing
Ray tracing (graphics),Visualization,Computer science,Scalar (physics),Numerical integration,Theoretical computer science,Beam tracing,Computational science,Distributed ray tracing,Line integral convolution,Trajectory
Journal
Volume
Issue
ISSN
22
2
0167-7055
Citations 
PageRank 
References 
10
0.66
8
Authors
3
Name
Order
Citations
PageRank
Peter Kipfer11347.99
Frank Reck2222.64
Günther Greiner359880.74