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LIST OF ILLUSTRATIONS Page Figure 1 Sketch of V072 Rotor/Stator Geometry .................................. 5 2 Wake Model .......................................................... 6 3 WakeNortex Flowfield ................................................ 6 4 Cascade Unsteady Aerodynamics Geometry .............................. 7 5 Coupling the Unsteady Aerodynamics to the Noise ........................ 8 6 Powered Nacelle Geometry Vs. V072 Representation ..................... 10 7 Full Scale Engine Geometry Vs. V072 Representation ..................... 12 8 Wake Convection Along the Cascade ................................... 13 9 Radial Mode Shapes ................................................. 15 10 Wake TimelPhase Lag Due to Rotor Blade 1\vist ......................... 17 11 Radial Mode Shapes - Hub/Tip Ratio 12 Full Scale Engine Geometry Vs. 13 Definition of YRD and YSD .......................................... 27 14 Definition of XSD ................................................... 27 15 Tip Vortex Location, SBNT ........................................... 32 16 Flow Chart for the von Rotor Wake/Stator Interaction Program ........... 39 iii = 0.38 ............................ 19 von Representation ..................... 23