Unsteady Flow Volumes

Authors:
Barry G. Becker;Nelson L. Max;David A. Lane
Affiliations:
Lawrence Liver-more National Laboratory, P.O. Box 808 / L-301, Livermore, CA;Lawrence Liver-more National Laboratory, P.O. Box 808 / L-301, Livermore, CA;Computer Sciences Corporation, NASA Ames Research Center, M/S T27A-2, Moffett Field, CA
Venue:
VIS '95 Proceedings of the 6th conference on Visualization '95
Year:
1995

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Abstract

Flow volumes [1] are extended for use in unsteady (time-dependent) flows. The resulting unsteady flow volumes are the 3 dimensional analog of streaklines. There are few examples where methods other than particle tracing have been used to visualize time varying flows. Since particle paths can become convoluted in time there are additional considerations to be made when extending any visualization technique to unsteady flows. We will present some solutions to the problems which occur in subdivision, rendering, and system design. We will apply the unsteady flow volumes to a variety of field types including moving multi-zoned curvilinear grids.