02096nam 2200541Ia 450 991070191140332120120830124016.0(CKB)5470000002423008(OCoLC)808729691(EXLCZ)99547000000242300820120830d2012 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierAcoustic shielding for a model scale counter-rotation open rotor[electronic resource] /David B. Stephens and Edmane Envia ; prepared for the 17th Aeroacoustics Conference sponsored by the American Institute of Aeronautics and Astronautics and the Confederation of European Aerospace Societies, Portland, Oregon, June 5-8, 2011Cleveland, Ohio :National Aeronautics and Space Administration, Glenn Research Center,[2012]1 online resource (16 pages) color illustrationsNASA/TM ;2012-217227Title from title screen (viewed on Aug. 30, 2012)."January 2012.""AIAA-2011-2940."Includes bibliographical references (pages 15-16).AcousticsnasatShieldingnasatPrediction analysis techniquesnasatRotor aerodynamicsnasatAerodynamic noisenasatCounter rotationnasatNoise reductionnasatAcoustics.Shielding.Prediction analysis techniques.Rotor aerodynamics.Aerodynamic noise.Counter rotation.Noise reduction.Stephens David B1404359Envia Edmane1388247NASA Glenn Research Center.AIAA/CEAS Aeroacoustics Conference(17th :2011 :Portland, Or.)GPOGPOBOOK9910701911403321Acoustic shielding for a model scale counter-rotation open rotor3548739UNINA