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The acoustics wind tunnel laboratory has a quiet mini-wind-tunnel with the closed-loop flow at low speed. The noise generated from the driving fan is mostly absorbed by the acoustic linings inside the tunnel. The working section is about 1.8m long and it can be readily changed from a closed to an open jet. The maximum mean speed of 50m/s can be provided in the low noise working section. The tunnel facilities are equipped with movable platform, miniature microphones and hot wire anemometers and associated calibration equipment, various airflow anemometers and manometers, multi-channel data acquisition and processing systems, laservibrometers, Dspace control platform. This laboratory can support teaching and research activities in aeroacoustics, flow-through silencer design and development, active noise control, flow-induced vibration and noise-induced vibration.


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