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2007
IEEE

Generalized Streak Lines: Analysis and Visualization of Boundary Induced Vortices

10 years 1 months ago
Generalized Streak Lines: Analysis and Visualization of Boundary Induced Vortices
Abstract--We present a method to extract and visualize vortices that originate from bounding walls of three-dimensional timedependent flows. These vortices can be detected using their footprint on the boundary, which consists of critical points in the wall shear stress vector field. In order to follow these critical points and detect their transformations, affected regions of the surface are parameterized. Thus, an existing singularity tracking algorithm devised for planar settings can be applied. The trajectories of the singularities are used as a basis for seeding particles. This leads to a new type of streak line visualization, in which particles are released from a moving source. These generalized streak lines visualize the particles that are ejected from the wall. We demonstrate the usefulness of our method on several transient fluid flow datasets from computational fluid dynamics simulations.
Alexander Wiebel, Xavier Tricoche, Dominic Schne
Added 03 Nov 2009
Updated 03 Nov 2009
Type Conference
Year 2007
Where VIS
Authors Alexander Wiebel, Xavier Tricoche, Dominic Schneider, Heike Jänicke, Gerik Scheuermann
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