Název: Aerodynamic interference forces acting on two square prisms in a model atmospheric boundary layer
Autoři: Macháček, Michael ; Lo, Y. L. ; Máca, J.
Typ dokumentu: Příspěvky z konference
Konference/Akce: International Conference Engineering mechanics 2022, Milovy (CZ), 20220509
Rok: 2022
Jazyk: eng
Abstrakt: The presented experimental analysis focuses on the definition of interference factors for aerodynamic forces acting on two square prisms depending on their relative position. Both prisms used had the same dimensions and a height to width ratio of 6 - this ratio is relatively common in high-rise buildings. The experiment was performed in a wind tunnel with a model atmospheric boundary layer, which represented a dense urban area. The forces acting at the base of one of the buildings were measured, and by moving the other building it was possible to measure 204 mutual configurations, i.e., 204 interference positions. In all positions, the windward facades of the small-area model were placed perpendicular to the direction of the incoming flow. This created a detailed map of the interference effect on a wind-loaded pair of buildings. The results show a significant effect of the relative position of buildings on wind loads. A significant increase in\nload occurred due to the proximity of buildings. Due to the interference effect, wind load fluctuations can increase by up to 28% and average values by up to 36%.
Klíčová slova: interference effect; turbulent boundary layer; two square prisms; wind tunnel experiments
Číslo projektu: VAJVA-19-20 (CEP)
Poskytovatel projektu: GA AV ČR
Zdrojový dokument: Engineering mechanics 2022. Book of full texts, ISBN 978-80-86246-48-2, ISSN 1805-8248
Poznámka: Související webová stránka: https://www.engmech.cz/im/proceedings/show_p/2022/245

Instituce: Ústav teoretické a aplikované mechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v repozitáři Akademie věd.
Původní záznam: http://hdl.handle.net/11104/0331330

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-508576


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teoretické a aplikované mechaniky
Konferenční materiály > Příspěvky z konference