TY  - JOUR
AU  - Hemida, Hassan
AU  - Šarkić-Glumac, Anina
AU  - Vita, Giulio
AU  - Kostadinović Vranešević, Kristina
AU  - Höffer, Rüdiger
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2112
AB  - The human migration from rural to urban areas has triggered a chain reaction causing the spiking energy demand of cities worldwide. High-rise buildings filling the urban skyline could potentially provide a means to improve the penetration of renewable wind energy by installing wind turbines at their rooftop. However, the above roof flow region has not received much attention and most results deal with low-rise buildings. This study investigates the flow pattern above the roof of a high-rise building by analysing velocity and pressure measurements performed in an atmospheric boundary layer wind tunnel, including four wind directions and two different roof shapes. Comparison of the surface pressure patterns on the flat roof with available low-rise building studies shows that the surface pressure contours are consistent for a given wind direction. At 0◦ wind direction, a separation bubble is detected, while cone vortices dominate at 30◦ and 45◦. The determining factor for the installation of small wind turbines is the vicinity to the roof. Thus, 45◦ wind direction shows to be the most desirable angle by bringing the substantial amplification of wind and keeping the turbulence intensity low. Decking the roof creates favourable characteristics by overcoming the sensitivity to the wind direction while preserving the speed-up effect.
PB  - MDPI
T2  - Applied Sciences
T1  - On the Flow over High-rise Building for Wind Energy Harvesting: An Experimental Investigation of Wind Speed and Surface Pressure
VL  - 10
DO  - 10.3390/app10155283
ER  - 

@article{
author = "Hemida, Hassan and Šarkić-Glumac, Anina and Vita, Giulio and Kostadinović Vranešević, Kristina and Höffer, Rüdiger",
year = "2020",
abstract = "The human migration from rural to urban areas has triggered a chain reaction causing the spiking energy demand of cities worldwide. High-rise buildings filling the urban skyline could potentially provide a means to improve the penetration of renewable wind energy by installing wind turbines at their rooftop. However, the above roof flow region has not received much attention and most results deal with low-rise buildings. This study investigates the flow pattern above the roof of a high-rise building by analysing velocity and pressure measurements performed in an atmospheric boundary layer wind tunnel, including four wind directions and two different roof shapes. Comparison of the surface pressure patterns on the flat roof with available low-rise building studies shows that the surface pressure contours are consistent for a given wind direction. At 0◦ wind direction, a separation bubble is detected, while cone vortices dominate at 30◦ and 45◦. The determining factor for the installation of small wind turbines is the vicinity to the roof. Thus, 45◦ wind direction shows to be the most desirable angle by bringing the substantial amplification of wind and keeping the turbulence intensity low. Decking the roof creates favourable characteristics by overcoming the sensitivity to the wind direction while preserving the speed-up effect.",
publisher = "MDPI",
journal = "Applied Sciences",
title = "On the Flow over High-rise Building for Wind Energy Harvesting: An Experimental Investigation of Wind Speed and Surface Pressure",
volume = "10",
doi = "10.3390/app10155283"
}

Hemida, H., Šarkić-Glumac, A., Vita, G., Kostadinović Vranešević, K.,& Höffer, R.. (2020). On the Flow over High-rise Building for Wind Energy Harvesting: An Experimental Investigation of Wind Speed and Surface Pressure. in Applied Sciences
MDPI., 10.
https://doi.org/10.3390/app10155283

Hemida H, Šarkić-Glumac A, Vita G, Kostadinović Vranešević K, Höffer R. On the Flow over High-rise Building for Wind Energy Harvesting: An Experimental Investigation of Wind Speed and Surface Pressure. in Applied Sciences. 2020;10.
doi:10.3390/app10155283 .

Hemida, Hassan, Šarkić-Glumac, Anina, Vita, Giulio, Kostadinović Vranešević, Kristina, Höffer, Rüdiger, "On the Flow over High-rise Building for Wind Energy Harvesting: An Experimental Investigation of Wind Speed and Surface Pressure" in Applied Sciences, 10 (2020),
https://doi.org/10.3390/app10155283 . .