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Validating the effect of vertically staggered wind turbines in the entrance region of extended windfarms

Arendshorst, M.G. (2019) Validating the effect of vertically staggered wind turbines in the entrance region of extended windfarms.

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Abstract:This internship is part of my double masters degree Applied Physics/Mechanical Engineering at the University of Twente. I went to the School of Civil Engineering within the University of Sydney to design a scaled-down wind turbine post that I thereafter used to study the effect of vertically staggered wind turbines within the entrance region of a large wind farm in the Boundary Layer Wind Tunnel. The turbine posts consists of four features: an array of flat faces that allow vertical staggering without the need of multiple different sized wind turbines, a flat surface in combination with an inclined hole on which a strain gauge can be applied and the strain gauge leads can be fed through, a slot that enables the turbine posts to bend more near the base of the post and a threaded section with two flats on either side that are used for positioning and aligning the turbine post in the wind tunnel. The research was done to validate the results from Large Eddy Simulation (LES) on vertically staggered wind farms. The study suggested that elevating the odd numbered turbine rows increases the power production of the entrance region of a large wind farm more than the entrance region in a wind farm in which the odd numbered turbine rows were lowered under certain conditions. I found that the wind farm in which the odd numbered turbine rows were lowered performed better instead, although under slightly different conditions, such as a higher incoming freestream velocity and a smaller turbine spacing. Another part of my internship was tutoring a third year Fluid Mechanics course to students that are doing their third year of studying Civil Engineering at the University of Sydney.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:52 mechanical engineering
Programme:Mechanical Engineering MSc (60439)
Link to this item:http://purl.utwente.nl/essays/79393
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