HSV representation of non-Newtonian Lattice-Boltzmann flows

Robert Geist; Karl Rasche; James Westall

doi:10.1117/12.458792

12 March 2002 HSV representation of non-Newtonian Lattice-Boltzmann flows

Robert Geist, Karl Rasche, James Westall

Proceedings Volume 4665, Visualization and Data Analysis 2002; (2002) https://doi.org/10.1117/12.458792
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

An approach to modeling and visualization of non-Newtonian flows that is based on lattice-Boltzmann techniques is described. Important advantages over traditional, finite-element methods include the speed and simplicity of the update and the reduced storage, which is linear in the number of nodes. Because the quantities of interest in the solution depend critically upon directional flow densities, a technique for their direct display is suggested. The HSV (hue, saturation, value) color model is a hexcone whose intersection with any plane of constant V>0 yields a hexagon that matches the isotropic flow grid. Thus, a natural representation emerges. An auxiliary display is provided in which the HSV cone is shown in partial transparency along with the magnitudes of the contributing densities for the pixel currently identified by the cursor. A variation on LIC is suggested to enhance field visualization.

Citation Download Citation

Robert Geist, Karl Rasche, and James Westall "HSV representation of non-Newtonian Lattice-Boltzmann flows", Proc. SPIE 4665, Visualization and Data Analysis 2002, (12 March 2002); https://doi.org/10.1117/12.458792

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