Abstract
Despite their antiquity, wind towers have only recently gained popularity among the researchers and architects practicing natural ventilation, especially since their performance relies both on wind and stack effect. In studying natural ventilation using wind towers, different environmental parameters and their various geometrical elements have been taken into consideration previously, but the position of the wind tower with respect to the lower building has never been assessed. Therefore, this study employs CFD to understand how at various wind incident angles, three different positions of a one-sided wind tower with respect to the lower room’s window can provide different cross-ventilation efficiencies in terms of mass flow rate, velocity magnitude, and mean age of air inside the room. Furthermore, this study shows how a case with a better airflow rate might not necessarily have the freshest air at the same time. Therefore, for a natural ventilation study to be reliable, it is necessary to evaluate several parameters simultaneously.
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References
Heiselberg, P.: Natural ventilation design. Int. J. Vent. 2(4), 295–312 (2004)
Chiesa, G., Grosso, M.: Breakthrough of natural and hybrid ventilative cooling technologies: models and simulations. Int. J. Vent. 15(3–4), 183–185 (2016)
Vaziri, A.A.K., Bastani Parizi, M.E. (eds.): History of Kerman. Elm, Tehran (2006)
Battle McCarthy Consulting Engineers: Wind Towers, Detail in Building. Academy Press, West Sussex (1999)
Hughes, B.R., Cheuk-Ming, M.: A study of wind and buoyancy driven flows through commercial wind towers. Energy Build. 43, 1784–1791 (2011)
Montazeri, H.: Experimental and numerical study on natural ventilation performance of various multi-opening wind catchers. Build. Environ. 46(2), 370–378 (2010)
Kazemi, M.E., Dehghan, A.A., Dehghan, M.M., Mohagheghian, S.: Visualized flow structure around and inside of one-sided wind-catchers. Energy Build. 55, 545–552 (2012)
Ghadiri, M.H., Ibrahim, N.L.N., Mohamed, M.F.: Performance evaluation of four-sided square wind catchers with different geometries by numerical method. Engineering Journal 17(4), 9–17 (2013)
Ghadiri, M.H., Lukman, N., Ibrahim, N., Mohamed, M.F.: Applying computational fluid dynamic to evaluate the performance of four-sided rectangular wind catcher with different height. Res. J. Appl. Sci. Eng. Technol. 7, 502–509 (2014)
Montazeri, H., Montazeri, F.: CFD simulation of cross-ventilation in buildings using rooftop windcatchers: Impact of outlet openings. Renew. Energy 118, 502–520 (2018)
Montazeri, H., Azizian, R.: Experimental study on natural ventilation performance of one-sided wind catcher. Build. Environ. 43(12), 234–244 (2008)
Shih, T.H., Liou, W.W., Shabbir, A., Yang, Z., Zhu, J.: A new k-ε eddy viscosity model for high Reynolds number turbulent flows. Comput. Fluids 24, 227–238 (1995)
Blocken, B., Stathopoulos, T., Carmeliet, J.: CFD simulation of the atmospheric boundary layer: wall function problems. Atmos. Environ. 41, 238–252 (2007)
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Ahmadi, M. (2020). How the Position of a Root-Top One-Sided Wind Tower Affects Its Cross-Ventilation Effectiveness. In: Littlewood, J., Howlett, R., Capozzoli, A., Jain, L. (eds) Sustainability in Energy and Buildings. Smart Innovation, Systems and Technologies, vol 163. Springer, Singapore. https://doi.org/10.1007/978-981-32-9868-2_40
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DOI: https://doi.org/10.1007/978-981-32-9868-2_40
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