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A CFD-Based Optimization of Building Configuration for Urban Ventilation Potential

Author

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  • Jongyeon Lim

    (Department of Architectural Engineering, Kangwon National University, Chuncheon-si 24341, Korea
    Department of Integrated Energy and Infra System, Kangwon National University, Chuncheon-si 24341, Korea)

  • Ryozo Ooka

    (Institute of Industrial Science, University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan)

Abstract

In this paper, we present a performance-based approach to building configuration design to improve the urban ventilation potential at the conceptual design stage, and we demonstrate its application through a case study. The target performance optimized was the ventilation potential of a district, including a region of interest at a spatial scale of hundreds of meters. To estimate this performance, we used computational fluid dynamics (CFD), coupled with an evolutionary algorithm, to optimize the design alternatives to produce the building configuration most suitable for a given set of site conditions. Three calculation components must be assembled for a CFD-based design optimization: an optimizer, a geometry/mesh generator, and a CFD solver. To provide links between the calculation components, we utilized an in-house parametric design program. A case study was conducted to test the applicability of the proposed design method to identify the optimal solutions that minimize adverse effects on the ventilation potential of the surrounding area. For a configuration of buildings in a dense urban area, the proposed design method successfully improved the design alternatives. The results show that the urban ventilation potential in the case of the optimized building configuration is 16% greater than that of the initial building configuration.

Suggested Citation

  • Jongyeon Lim & Ryozo Ooka, 2021. "A CFD-Based Optimization of Building Configuration for Urban Ventilation Potential," Energies, MDPI, vol. 14(5), pages 1-16, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1447-:d:512081
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    References listed on IDEAS

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    Cited by:

    1. Jie Yin & Qingming Zhan & Muhammad Tayyab & Aqeela Zahra, 2021. "The Ventilation Efficiency of Urban Built Intensity and Ventilation Path Identification: A Case Study of Wuhan," IJERPH, MDPI, vol. 18(21), pages 1-16, November.

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