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

作     者：Kae Tsunematsu Bastien Chopard Jean-Luc Falcone Costanza Bonadonna 

作者机构：Department of MineralogyUniversity of Geneva13 Rue des Maraichers1205 GeneveSwitzerland Department of Computer ScienceUniversity of Geneva7 Route de Drize1227 CarougeSwitzerland 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2011年第9卷第5期

页      面：1323-1334页

核心收录：

学科分类：0711[理学-系统科学] 07[理学] 08[工学] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 071102[理学-系统分析与集成] 081103[工学-系统工程] 

基　　金：supported by the Swiss National Science Foundation and the European Commission(COAST project EUFP6-IST-FET Contract 033664) 

主　　题：Cellular automata lattice Boltzmann tephra transport advection-diffusion computational efficiency 

摘      要：In order to model the dispersal of volcanic particles in the atmosphere and their deposition on the ground,one has to simulate an advection-diffusionsedimentation process on a large spatial *** we compare a Lattice Boltzmann and a Cellular Automata *** 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.