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Showing 1 to 1 of 1 for “"anechoic open jet wind tunnel"”.
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Measurement and Prediction of Rotor Noise Sources for sUAS in Outdoor and Laboratory Environments
… available eVTOL rotors in an enclosed anechoic environment and an open environment. For experimental measurements that were conducted in the anechoic chamber, recirculation effects were shown to increase harmonic amplitudes more than 8 dB. Varying solidity screens were placed in the …