Cross comparisons of CFD results of wind and dispersion fields for MUST experiment: Evaluation exercises by AIJ

Yoshihide Tominaga, Satoru Iizuka, Masashi Imano, Hiroto Kataoka, Akashi Mochida, Tsuyoshi Nozu, Yoshiyuki Ono, Taichi Shirasawa, Naoya Tsuchiya, Ryuichiro Yoshie

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

In order to apply Computational Fluid Dynamics (CFD) techniques to estimate pollutant dispersion in urban areas, it is important to assess the performance of numerical models used to estimate these phenomena. Recently, the MUST (Mock Urban Setting Test) has often been adopted as a test case for evaluating numerical models for micro-scale urban meteorology. This paper presents the results of model evaluation exercises carried out using MUST based on the Architectural Institute of Japan (AIJ) experience. The results of model evaluation exercises conducted by AIJ are broadly consistent with the results obtained by the COST group. However, the variety of results by each computation can be minimized by setting standard computational conditions. All computations including both RANS and LES show good agreement with wind experiment data. In general, LES cases show comparable accuracy to RANS in predicting U and W. However, LES shows better agreement than RANS in TKE and concentration.

Original languageEnglish
Pages (from-to)117-124
Number of pages8
JournalJournal of Asian Architecture and Building Engineering
Volume12
Issue number1
DOIs
Publication statusPublished - 2013 May 15

Keywords

  • AIJ
  • CFD
  • Cross comparison
  • Dispersion
  • The MUST case

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Cultural Studies
  • Building and Construction
  • Arts and Humanities (miscellaneous)

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