Experimental Studies of Wind Flow Inside a Street Canyon Between High-Rise Buildings with Angle of Attack Modifications

Doni Priambodo, Yongky Sanjaya, Prasanti Widyasih Sarli, Herlien D Setio


Failures of smaller structures located in between high-rise buildings due to wind have been observed. Further research on urban wind is needed o prevent further incidents. This research aims to investigate the wind flow in a street canyon of a cluster of 4 simplified symmetrical high-rise buildings with the angle of attack of 0o, 30o, and 45o. The study uses Particle Image Velocimeter (PIV) and Low Speed Wind Tunnel for the experiment. The results show that the flow at all angles can be defined as interaction flow, identified by two corner streams at the front passage entrance corner that interacts and merge into a single wide passage jet. The angle of attack changes the pattern of the flow in the cross-area. Before entering the passage, wind-blocking reduces the wind speed up to 40%. After entering the front building passage, its amplification rises to 6.9% above its original value at the angle of 0°, at the angle 30°, and 45° after entering it did not increase to its original value; the highest amplification rate occurred at 0o. At the angle of 30° and 45°, an extremely low wind speed region occurs in the cross area, which did not happen at 0°. It can be concluded that more complex patterns of building clusters lead to more vortex and turbulence in the cross area, which leads to decreasing speed. A “clashing point†from two flows (left and right passage) in its cross-section also leads to a higher turbulence rate in the cross area.


angle of attack; street canyon; PIV; wind flow pattern; low speed wind tunnel.

Full Text:



T. Stathopoulos and R. Storms, “Wind environmental conditions in passages between buildings, “Journal of Wind Engineering and Industrial Aerodynamics, vol. 24, pp. 19-31, 1986.

A. To and K. Lam, “Evaluation of pedestrian-level wind environment around a row of tall buildings using a quartile-level wind speed descriptor,†Journal of Wind Engineering and Industrial Aerodynamics, vol. 54/55, pp. 527-541, 1995.

B. Blocken, T. Stathopoulos, F. ASCE, and J. Carmeliet, “Wind Environmental Conditions in Passages between Two Long Narrow Perpendicular Buildings,†Journal of Aerospace Engineering, vol. 21, pp. 280-287, 2008.

B. Blocken, J. Carmeliet, and T. Stathopoulos, “CFD evaluation of wind speed conditions in passages between parallel buildings-effect of wall function roughness modifications for the atmospheric boundary layer flow,†Journal of Wind Engineering and Industrial Aerodynamics, vol. 95, pp. 941-962, 2007.

J. M. Santos, “Numerical simulation of flow and dispersion around an isolated cubical building: The effect of atmospheric stratification.†Atmospheric Environment, vol. 43, pp. 5484-5492, 2009.

B. Li, Z. Luo, M. Sandberg, and J. Liu, “Revisiting the 'Venturi effect' in passage ventilation between two non-parallel buildings,†Building and Environment, vol. 94, pp. 714-722, 2015.

J. Allegrini and B. Lopez, “The Influence of angular configuration of two buildings on the local wind climate,†Journal of Wind Engineering and Indsutrial Aerodynamics, vol. 156, pp. 50-61, 2016.

Q.M. Zahid Iqbal and A.L.S. Chan, “Pedestrian level wind environment assessment around group of high-rise cross-shaped buildings: effect of building shape, separation and orientationâ€, Building and Environment, vol. 101, pp. 45–63, 2016.

K.T. Tse, “Effects of twisted wind flows on wind conditions in passages between buildingsâ€, Journal of Wind Engineering and Industrial Aerodynamics, vol. 167, pp. 87–100, 2017.

Kuo, C.Y., Tzeng, C.T., Ho, M.C. & Lai, C.M., “Wind tunnel studies of a pedestrian-level wind environment in a street canyon between a high-rise building with a podium and low-level attached housesâ€, Energies, vol. 8, pp. 10942–10957, 2015.

Mittal, H. & Sharma, A., A review on the study of urban wind at pedestrian level around buildings. Journal of Building Engineering, pp. 154-163. 2018.

D. J. B. M. Kementerian PUPR and D. B. Teknik, “Tata Cara Perencanaan Jembatan Penyebrangan untuk Pejalan Kaki di Perkotaan,†Kementerian PUPR, Direktorat Jendral Bina Marga; Direktorat Bina Teknik, vol. Jembatan, No. 027/T/Bt/1995.

BBTA3.TR.20.0002.R, “Laporan Kajian Aerodinamika Model Gedung Menggunakan PIV di ESWT,†2020.

DOI: http://dx.doi.org/10.18517/ijaseit.10.5.12806


  • There are currently no refbacks.

Published by INSIGHT - Indonesian Society for Knowledge and Human Development