Real time plume dispersion simulation of lattice Boltzmann method

Onodera, Naoyuki

The SPEEDI and its world version (WSPEEDI) were developed to predict the off-site diffusion behavior of radioactive substances covering wide areas at ~100km scale based on a mesoscale metrological model. In this work, we apply two new ingredients, GPUs and an adaptive mesh refinement (AMR) method to the lattice Boltzmann method (LBM). In this report, we confirmed the good scalability on the GPU-rich supercomputer, and our code can reproduce the wind tunnel experiment. We conclude that the present LBM is one of most promising approaches to realize a real-time simulation.

Language	:	Japanese
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Meeting title	:	JHPCN: 学際大規模情報基盤共同利用・共同研究拠点第10回シンポジウム
Held date	:	2018/07
Location (city)	:	東京
Location (country)	:	日本
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Keywords	:	格子ボルツマン法; テンポラルブロッキング法; 適合細分化格子法
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Registration No. : BB20180799
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