Comparison of Two Advection-Diffusion Methods for Tephra Transport in Volcanic Eruptions

Comparison of Two Advection-Diffusion Methods for Tephra Transport in Volcanic Eruptions

Year:    2011

Communications in Computational Physics, Vol. 9 (2011), Iss. 5 : pp. 1323–1334

Abstract

In order to model the dispersal of volcanic particles in the atmosphere and their deposition on the ground, one has to simulate an advection-diffusion-sedimentation process on a large spatial area. Here we compare a Lattice Boltzmann and a Cellular Automata approach. Our results show that for high Peclet regimes, the cellular automata model produce results that are as accurate as the lattice Boltzmann model and is computationally more effective.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.311009.191110s

Communications in Computational Physics, Vol. 9 (2011), Iss. 5 : pp. 1323–1334

Published online:    2011-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    12

Keywords: