Print Email Facebook Twitter The Design of a Small Aeroacoustic Wind Tunnel Title The Design of a Small Aeroacoustic Wind Tunnel Author Vendrig, Perrin (TU Delft Aerospace Engineering) Contributor Mikkelsen, Robert (mentor) Ragni, Daniele (graduation committee) Fischer, Andreas (graduation committee) Degree granting institution Delft University of TechnologyTechnical University of Denmark Programme Aerospace Engineering | Aerodynamics and Wind Energy Date 2020-05-29 Abstract In this master thesis project the initial steps for the design of a new wind tunnelfor aeroacoustic measurements are made. Well-documented sizing methods fordifferent wind tunnel parts were found in a literature study and were usedtogether with 2D CFD simulations to create a new wind tunnel design. Thickcorner vanes were used in this design with the purpose of using them as bafflemufflers to create a better environment for aeroacoustic measurements inside the test section. The performance of the wind tunnel was evaluated thereafter by 3D CFD simulations. The 3D simulations provide an idea of the flow velocities, the flow uniformity, turbulence intensities, pressure losses and noise sources inside the wind tunnel. Since an existing wind tunnel fan and 42 kW motor was to be reused, noise measurements were done to find the noise characteristics of the fan-motor combination and to have an idea of how noise would propogate inthe environment were the new wind tunnel would be placed. After the noisemeasurements, predictions of the transmission loss through the corner vaneswere made by using finite element analyses. To reference this document use: http://resolver.tudelft.nl/uuid:ca4f1533-5fcb-4367-bd00-b95a5853df81 Part of collection Student theses Document type master thesis Rights © 2020 Perrin Vendrig Files PDF Thesis_Perrin_Vendrig_4023838.pdf 6.15 MB Close viewer /islandora/object/uuid:ca4f1533-5fcb-4367-bd00-b95a5853df81/datastream/OBJ/view