Civil and Project journal

Investigation of Wind Flow Around Tall Rectangular Buildings

https://doi.org/10.22034/cpj.2024.458271.1293
Volume 6, Issue 9 - Serial Number 67
November 2024
Pages 66-83
Civil and Project journal

Document Type : Research Article

Authors

Houshyar Eimani Kalehsar 1
Behnaz Niknam 2

1 Associate Professor, Technical Faculty of Mohaghegh Ardabili University, Ardabil, Iran

2 Master of Structures, Islamic Azad University, Germi Branch, Germi, Iran

Abstract
Wind flow around buildings affects worker safety, construction equipment performance, air and pollution protection at entrances, and the ability to control temperature, humidity, airflow, and pollutants inside. Wind creates variable pressures on buildings that change the flow rates of inlet and outlet systems, natural ventilation, infiltration and explosion, and internal pressures. The average wind flow patterns and resulting turbulence as it passes over a building can return exhaust gases to air inlets. In this research, three buildings with rectangular plan dimensions of 30 meters by 45 meters and heights of 180, 120 and 240 meters have been modeled and the effect of changing the height of these buildings on the wind flow around them has been investigated. The results show that with the increase in height and the rest of the characteristics of the buildings remaining constant, the average wind speed around buildings with a height of 180 and 120 meters has reached 10 meters per second, and the comfort of passers-by around them is endangered; But the average wind speed around the building with a height of 240 meters and at the level of pedestrians has reached up to 5 meters per second and is within the permissible range. The suction in the building with a height of 240 meters takes place behind the building and at the level of its upper quarter. The suction behind the 180-meter building is equal to the suction behind the 120-meter building, but the location of the suction behind the 120-meter building is as far as the large dimension of the plan.

Keywords

Tall building
wind flow
large eddy simulation
average wind speed
CAARC standard building
Subjects
Devi, P. (2021). Response Of Tall Building With Different Side Ratio Under WindLoad. Master
thesis Delhi Technological University.New Delhi, India.
Eimani Kalesar, H., & Agha Alizadeh Piraqom, R. (2013). Numerical simulation of tall buildings
and investigation of their response to wind load with ANSYS software. National Conference on
Construction and Sustainable Development. Mashhad, Khavaran Institute of Higher Education,. Persian.
Eimani-kalehsar, H. (2000). ”Experimental Aerodynamic studies on Tall Rrectangular Buildings”.,
Ph.D. thesis.Indian Institute of Technology Roorkee, Roorkee,India.
Fan, Y.& Lu, J.& Wang, L. (2023).Cross-Wind Aeroelastic Effects of Tall Buildings with a
Hexagonal Cross-Section. J. of Atmosphere . (14).996.https://doi.org/10.3390/atmos14060996.
Gu, Z.& Chen, F.& Zhu, .& Mei, Y.& Wang, Z.& Xu, L.& Li, Y. (2023). Numerical Simulation on
Wind Speed Amplification of High-RiseBuildings with Openings. Atmosphere .1687 ,14 ,
https://doi.org/10.3390/atmos14111687
Hassan Ahmed, A. & Eman Elnos Aly ,B.& Mostafa, E.A. &Elsayed, c.& Mohamed, A.& Khalifad,
M. A.& Aziz, E,& Osama, A. Gaheen. (2023) .Prediction Model And Experimental Study Of Wind
Speed Effect On The Tall Buildings Using Machine Learning. Journal of Mechanical and Civil
Engineering Volume 20, Issue 6 Ser. (PP 36-5).
66 / هوشیار ایمانی کله سر، بهناز نیکنام -83 ،)9( 6 ، نشریه عمران و پروژه، 1403
83
Izadi, E. (2016).The effect of lateral loads on buildings with a special plan. Master's thesis. Islamic
Azad University, Germi branch . Persian.
Nasiri Poreshkarsaraei, M . & Rabiefar, H. (2015). Investigation of the effect of lateral wind force
on the behavior of tall buildings. The third national conference on the development of engineering
sciences, Tonkabon, https://civilica.com/doc/543650
Mohammadi, A. (2015). Extraction of the dimensionless spectrum of transverse force of neighboring
tall buildings against the wind using one of the civil engineering software. Master's thesis. Civil
Engineering, Mohaghegh Ardabili University. Ardabil. Persian.
Qureshi, J. (2015). Design of Slender Tall Buildings for Wind and Earthquake. Regency Steel Asia
Symposium on Latest Design & Construction Technologies for Steel and Composite Steel-Concrete
Structures
Tamura, Y. (2013). Damping in Buildings and Estimation Techniques. In: Tamura, Y., Kareem, A.
(eds) Advanced Structural Wind Engineering. Springer, Tokyo. https://doi.org/10.1007/978-4-431-
54337-4_13
  • Receive Date 17 April 2024
  • Revise Date 21 April 2024
  • Accept Date 28 May 2024
  • First Publish Date 05 June 2024
  • Publish Date 21 November 2024

Home

Submit

Contact Us

Forthcoming Articles