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Wind and Structures Volume 35, Number 5, November 2022 , pages 297-307 DOI: https://doi.org/10.12989/was.2022.35.5.297 |
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A low-cost expandable multi-channel pressure system for wind tunnels |
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Moustafa Aboutabikh, Ahmed Elshaer and Haitham Aboshosha
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| Abstract | ||
| Over the past few decades, the use of wind tunnels has been increasing as a result of the rapid growth of cities and the urge to build taller and non-typical structures. While the accuracy of a wind tunnel study on a tall building requires several aspects, the precise extraction of wind pressure plays a significant role in a successful pressure test. In this research study, a lowcost expandable synchronous multi-pressure sensing system (SMPSS) was developed and validated at Ryerson University's wind tunnel (RU-WT) using electronically scanning pressure sensors for wind tunnel tests. The pressure system consists of an expandable 128 pressure sensors connected to a compact data acquisition and a host workstation. The developed system was examined and validated to be used for tall buildings by comparing mean, root mean square (RMS), and power spectral density (PSD) for the base moments coefficients with the available data from the literature. In addition, the system was examined for evaluating the mean and RMS pressure distribution on a standard low-rise building and were found to be in good agreement with the validation data. | ||
| Key Words | ||
| aerodynamics; pressure system; synchronous multi-pressure sensing system; wind engineering; wind load; wind tunnel | ||
| Address | ||
| Moustafa Aboutabikh and Haitham Aboshosha:Department of Civil Engineering, Ryerson University, 350 Victoria, St. M5B 2K3, Toronto, Canada Ahmed Elshaer:1)Department of Civil Engineering, Ryerson University, 350 Victoria, St. M5B 2K3, Toronto, Canada 2)Department of Civil Engineering, Lakehead University, 955 Oliver Rd., P7B 5E1, Thunder Bay, ON, Canada | ||