IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v16y2024i13p5745-d1429570.html
   My bibliography  Save this article

CFD Analysis of the Impact of Building Layout and Morphology on Pedestrian-Level Airflow and Pollutant Stagnation in Urban Areas with Well-Developed Surface Boundary Layers

Author

Listed:
  • Oh Byoungchull

    (Green Energy Research Bureau, Gwangju Climate and Energy Agency, Gwangju 61954, Republic of Korea)

  • Park Beungyong

    (Department of Building and Plant Engineering, Hanbat National University, Daejeon 34158, Republic of Korea)

Abstract

This study focuses on the features of wind flow and pollutant diffusion of continuous urban street canyons with distinct surface boundary layers through computational fluid dynamics (CFD) analysis. The CFD analysis is set as cyclic boundary conditions to represent the continuous canyons. This study establishes four cases with different building heights and arrangements, and three cases with different atmospheric stability conditions to evaluate the effects of building types and atmospheric stability on wind flow and ventilation characteristics. Pollutants were emitted in a section below the height of 7.5 m from the ground to figure out the ventilation performance of spaces where pedestrians move within urban street canyons. Ventilation rate and purging flow rate (PFR) were calculated to confirm the results. Furthermore, this study analyzed the effects of the ventilation efficiency of canyons on ventilation performance depending on canyon patterns and diverse conditions of atmospheric stability.

Suggested Citation

  • Oh Byoungchull & Park Beungyong, 2024. "CFD Analysis of the Impact of Building Layout and Morphology on Pedestrian-Level Airflow and Pollutant Stagnation in Urban Areas with Well-Developed Surface Boundary Layers," Sustainability, MDPI, vol. 16(13), pages 1-20, July.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:13:p:5745-:d:1429570
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/16/13/5745/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/16/13/5745/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:16:y:2024:i:13:p:5745-:d:1429570. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.