福岡市街地を対象とした大規模数値風況予測

Translated title of the contribution: HUGE COMPUTATION OF AIRFLOW AROUND THE FUKUOKA CITY

Takanori Uchida, 荒屋 亮, Takanori Uchida, Ryo Araya

Research output: Contribution to journalArticle

Abstract

In order to simulate unsteady three-dimensional airflow around urban city area with characteristic length scales of the order of kilometers, we have been examining the large-eddy simulation (LES) technique using a finite-difference method (FDM). In this paper, using the LES technique, we have performed the calculation of buoyant gas diffusion around real urban area with huge computational grids. The various patterns of gas diffusion are clarified, and airflow is also locally accelerated or decelerated, due to the topographic and the obstacle effects.
Translated title of the contributionHUGE COMPUTATION OF AIRFLOW AROUND THE FUKUOKA CITY
Original languageJapanese
Pages (from-to)55-62
Number of pages8
Journal九州大学応用力学研究所所報
Issue number142
DOIs
Publication statusPublished - Mar 2012

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