Large-eddy simulation of flow around buildings: Validation and sensitivity analysis

T. Okaze, H. Kikumoto, H. Ono, M. Imano, N. Ikegaya, T. Hasama, K. Nakao, T. Kishida, Y. Tabata, R. Yoshie, Y. Tominaga

Research output: Contribution to conferencePaper

Abstract

Appropriate LES guidelines for the pedestrian wind environment in urban areas are being established by a working group from the Architectural Institute of Japan. In this study, large-eddy simulations were conducted for the flow field around an isolated building and within a cubic building array to clarify the influence of various computational conditions on turbulent statistics. First, a cross comparison study was performed by examining both experimental and large-eddy simulation (LES) results for various computational grid arrangements, sub-grid scale turbulence models, spatial derivation schemes (for the convection term), and convergence criterion for a coupling algorithm relating the flow and pressure fields in the flow field around an isolated building. Next, the appropriate computational conditions, obtained from the LES for flow around an isolated building, were applied to the LES for flow within a building array.

Original languageEnglish
Publication statusPublished - 2017
Event9th Asia Pacific Conference on Wind Engineering, APCWE 2017 - Auckland, New Zealand
Duration: Dec 3 2017Dec 7 2017

Conference

Conference9th Asia Pacific Conference on Wind Engineering, APCWE 2017
CountryNew Zealand
CityAuckland
Period12/3/1712/7/17

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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    Okaze, T., Kikumoto, H., Ono, H., Imano, M., Ikegaya, N., Hasama, T., Nakao, K., Kishida, T., Tabata, Y., Yoshie, R., & Tominaga, Y. (2017). Large-eddy simulation of flow around buildings: Validation and sensitivity analysis. Paper presented at 9th Asia Pacific Conference on Wind Engineering, APCWE 2017, Auckland, New Zealand.