Wind power continues to be produced by large-scale wind farms in remote areas. Supplying urban areas requires that this power be transmitted over vast distances. Generating power locally in urban cities not only decreases transmission distances but reduces external demand by using the harvested energy on site. A crucial element in the use of wind in the built environment as a source of energy is finding ways to maximize its flow. As flow approaches the windward facade of a building's structure, it is disturbed, causing an increase in velocity both at the roof's edge and above the separation bubble. Energy harvesting devices are usually placed in this flow region. The aim of this study is to further investigate the accelerated flow by modifying the building's structure to be a concentrator of the wind, thereby maximizing the available wind power. Using computational fluid dynamics, sloped facades at varying angles were investigated. Simulations show that at an angle of 30°, the velocity is amplified by more than 100% at the separation point directly above the roof's leading edge. Currently, wind tunnel experiments simulating flow behavior are being conducted and it is expected that analysis of the data will validate and support the findings presented.
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