elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Semi-Empirical Modeling of Fuselage-Rotor Interference for Comprehensive Codes: Influence of Angle of Attack

van der Wall, Berend G. and Yin, Jianping (2015) Semi-Empirical Modeling of Fuselage-Rotor Interference for Comprehensive Codes: Influence of Angle of Attack. CEAS Aeronautical Journal, 6 (4), pp. 557-574. Springer. DOI: 10.1007/s13272-015-0163-2 ISSN 1869-5582

Full text not available from this repository.

Abstract

The flow field around the isolated Bo105 fuselage including the tail boom and empennage is computed by an unsteady panel code. Velocities normal to the rotor rotational plane are extracted in a volume around the rotor as a data base. A simple semi-empirical analytical formulation of the fuselage-induced velocities, based on parameter estimation from the panel code data, is extended to include rotor shaft angles of attack from alpha=-90° (hover, vertical climb) to +90° (vertical descent) for use in comprehensive rotor codes. This model allows the computation of fuselage-rotor interferences on the rotor blade element level in a simplified form, thus eliminating the need for costly CFD computation (of this effect). It also allows the prediction of the rotor wake geometry deformation due to the presence of the fuselage in both prescribed wake and free-wake codes. Its impact on rotor thrust, power and trim is estimated analytically using blade element momentum theory.

Item URL in elib:https://elib.dlr.de/89338/
Document Type:Article
Title:Semi-Empirical Modeling of Fuselage-Rotor Interference for Comprehensive Codes: Influence of Angle of Attack
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
van der Wall, Berend G.Berend.vanderWall (at) dlr.deUNSPECIFIED
Yin, Jianpingjianping.yin (at) dlr.deUNSPECIFIED
Date:December 2015
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:6
DOI :10.1007/s13272-015-0163-2
Page Range:pp. 557-574
Publisher:Springer
ISSN:1869-5582
Status:Published
Keywords:Bo105, fuselage-rotor interference, comprehensive code, rotor dynamics, rotor aerodynamics, rotor trim
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:20 Aug 2015 15:00
Last Modified:06 Sep 2019 15:24

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.