THE PURPOSE OF THIS EFFORT IS TO IMPROVE AND VALIDATE A TURBOMACHINERY NOISE SCATTERING PREDICTION CAPABILI…

Public award description

THE PURPOSE OF THIS EFFORT IS TO IMPROVE AND VALIDATE A TURBOMACHINERY NOISE SCATTERING PREDICTION CAPABILITY IN SUPPORT OF THE ENVIRONMENTALLY RESPONSIBLE AVIATION (ERA) PROJECT. AN UNDERSTANDING AND ABILITY TO PREDICT TURBOMACHINERY NOISE DIFFRACTION OF A HYBRID WING BODY (HWB) AIRCRAFT CONFIGURATION IS REQUIRED. THE OBJECTIVE OF THIS EFFORT IS TO ADVANCE THE TURBOMACHINERY NOISE SCATTERING PREDICTION CAPABILITY FOR USE AND IMPLEMENTATION WITHIN NASA S AIRCRAFT NOISE PREDICTION PROGRAM2 (ANOPP2) AND TO PROVIDE PREDICTIONS TO SUPPORT THE ERA EXPERIMENTAL EFFORT OF THE HWB CONFIGURATION KNOWN AS THE N2A-EXTE. IF TIME PERMITS, THE IMPROVED SHIELDING METHOD SHALL BE APPLIED TO CANONICAL PROPULSION SYSTEM INSTALLATIONS (TURBOFAN AND OPEN ROTOR) MOUNTED ON TOP OF A LIFTING SURFACE OR ATTACHED TO A CYLINDRICAL FUSELAGE VIA A PYLON TO EXPLORE METHOD CAPABILITY AND SHIELDING POTENTIAL OF SUCH INSTALLATIONS.