NDLI: Aeroacoustic codes for rotor harmonic and bvi noise. camrad.mod1/hires: methodology and users' manual

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Aeroacoustic codes for rotor harmonic and bvi noise. camrad.mod1/hires: methodology and users' manual

Content Provider	NASA Technical Reports Server (NTRS)
Author	Brooks, Thomas F. Jolly Jr., J. Ralph Burley, Casey L. Boyd Jr., D. Douglas
Copyright Year	1998
Description	This document details the methodology and use of the CAMRAD.Mod1/HIRES codes, which were developed at NASA Langley Research Center for the prediction of helicopter harmonic and Blade-Vortex Interaction (BVI) noise. CANMAD.Mod1 is a substantially modified version of the performance/trim/wake code CANMAD. High resolution blade loading is determined in post-processing by HIRES and an associated indicial aerodynamics code. Extensive capabilities of importance to noise prediction accuracy are documented, including a new multi-core tip vortex roll-up wake model, higher harmonic and individual blade control, tunnel and fuselage correction input, diagnostic blade motion input, and interfaces for acoustic and CFD aerodynamics codes. Modifications and new code capabilities are documented with examples. A users' job preparation guide and listings of variables and namelists are given.
File Size	7052102
Page Count	236
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19980148012
Archival Resource Key	ark:/13960/t0cv9fj37
Language	English
Publisher Date	1998-03-01
Access Restriction	Open
Subject Keyword	Acoustics High Resolution Helicopters Blade-vortex Interaction Rotor Aerodynamics Aerodynamic Noise Aerodynamics User Manuals Computer Programs Vortices Wakes Fuselages Applications Programs Computers Blade Slap Noise Aeroacoustics Noise Prediction Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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