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13th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics
Acoustic liners can represent an effective strategy for noise reduction in aero engines. To assess the sound absorption effectiveness under representative operating conditions and to validate numerical methods, the treatments shall be characterized by using grazing flow rigs. Purpose of this survey is to describe the design solutions adopted in a brand-new test rig aimed at evaluating the performance of the liners under testing conditions representative of the turbine exhaust in an aircraftdoi:10.29008/etc2019-347 fatcat:kd2jkrhkxjf4xcjebu4x23ves4