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A Simple Analytical Fuselage-Induced Velocity Model for Comprehensive Rotor Codes

van der Wall, Berend G. and Wentrup, Marc and Rajagopalan, Ganesh and Jung, Sung N. (2015) A Simple Analytical Fuselage-Induced Velocity Model for Comprehensive Rotor Codes. 41st European Rotorcraft Forum, 01.-04. Sept. 2015, Munich, Germany.

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Abstract

A simple analytical model to account for fuselage-induced velocities at rotor blade elements and at rotor wake nodes is described. The method is applied to three different fuselages. Results obtained with a comprehensive rotor code show the fuselage effect on rotor trim controls, comparing the isolated rotor with inclusion of the fuselage for the same trim. This is compared to a simple analytical estimate of the fuselage effect using blade element/momentum theory. It is found that in forward flight the lateral control is mainly affected by fuselage effects. Rotor thrust can be increased or reduced by the presence of the fuselage, depending on its angle of attack, and the fuselage influence generally increases with flight speed.

Item URL in elib:https://elib.dlr.de/95986/
Document Type:Conference or Workshop Item (Speech)
Title:A Simple Analytical Fuselage-Induced Velocity Model for Comprehensive Rotor Codes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
van der Wall, Berend G.Berend.vanderWall (at) dlr.deUNSPECIFIED
Wentrup, Marcmarc.wentrup (at) dlr.deUNSPECIFIED
Rajagopalan, Ganeshrajagopa (at) iastate.eduUNSPECIFIED
Jung, Sung N.Konkuk UniversityUNSPECIFIED
Date:3 September 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-21
Status:Published
Keywords:fuselage-rotor interference, comprehensive code, rotor dynamics, rotor aerodynamics, rotor trim
Event Title:41st European Rotorcraft Forum
Event Location:Munich, Germany
Event Type:international Conference
Event Dates:01.-04. Sept. 2015
Organizer:Deutsche Gesellschaft für Luft- und Raumfahrt e.V. (DGLR)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:22 Sep 2015 15:13
Last Modified:22 Sep 2015 15:13

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