User's Manual for Ucap
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Published: 2018-07-23
Total Pages: 182
ISBN-13: 9781723479519
DOWNLOAD EBOOK →This is the user's manual for the Unified Counter-rotation Aeroacoustics Program (UCAP), the counter-rotation derivative of the UAAP (Unified Aero-Acoustic Program). The purpose of this program is to predict steady and unsteady air loading on the blades and the noise produced by a counter-rotation Prop-Fan. The aerodynamic method is based on linear potential theory with corrections for nonlinearity associated with axial flux induction, vortex lift on the blades, and rotor-to-rotor interference. The theory for acoustics and the theory for individual blade loading and wakes are derived in Unified Aeroacoustics Analysis for High Speed Turboprop Aerodynamics and Noise, Volume 1 (NASA CR-4329). This user's manual also includes a brief explanation of the theory used for the modelling of counter-rotation. Culver, E. M. and Mccolgan, C. J. Unspecified Center AEROACOUSTICS; AERODYNAMIC NOISE; AIRCRAFT NOISE; COUNTER ROTATION; PROP-FAN TECHNOLOGY; PROPELLER FANS; TURBOPROP AIRCRAFT; USER MANUALS (COMPUTER PROGRAMS); AERODYNAMIC LOADS; NONLINEARITY; POTENTIAL THEORY; VORTICES; WAKES...
