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Volume deformations in grid-less flow simulations

: Obermaier, H.; Hering-Bertram, M.; Kuhnert, J.; Hagen, H.


Computer graphics forum 28 (2009), No.3, pp.879-886
ISSN: 0167-7055
ISSN: 1467-8659
Journal Article
Fraunhofer ITWM ()

This paper presents a novel method for the extraction and visualization of volume deformations in grid-less point based flow simulations. Our primary goals are the segmentation of different paths through a mixing device and the visualization of ellipsoidal particle deformations. The main challenges are the numerically efficient processing of deformation tensors and the robust integration of stream- and streaklines at boundaries of the dataset such that closed segments are obtained. Our results show two- and three-dimensional particle deformations as well as the segmentation of volumes in stationary fields and areas in time-dependent datasets taking consistent paths through a mixing device.