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

Validation and Assessment of DLR and ONERA Euler Codes for Multibladed Rotors in Hover

Raddatz, J. and Rouzaud, O. (1996) Validation and Assessment of DLR and ONERA Euler Codes for Multibladed Rotors in Hover. DLR-Interner Bericht. 129-96/46, 48 S.

Full text not available from this repository.

Abstract

Two different Euler codes for hovering rotor calculations, developed by DLR and ONERA, are compared and assessed using common computational grids. The tests are based on the Caradonna-Tung data base and on the new HELISHAPE tests with 4-bladed 7A rotor, scheduled for end of 1995. For all test cases the predicted pressure distributions of both codes are in good agreement. Considering that Euler calculation do not account for viscous effects the predicted surface data also compare well with experiments. A detailed comparison of the wake and tip vortex representation by both Euler methods shows some differences. The strong effects of numerical diffusion on wake resolution are demonstrated. It is found that a detailed wake and vortex representation hinders the convergence to steady state of the Euler methods, particularly the integrated flow quantities oscillate with iteration in a low-.

Item URL in elib:https://elib.dlr.de/36537/
Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=1997,
Title:Validation and Assessment of DLR and ONERA Euler Codes for Multibladed Rotors in Hover
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Raddatz, J.UNSPECIFIEDUNSPECIFIED
Rouzaud, O.UNSPECIFIEDUNSPECIFIED
Date:1996
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:48
Status:Published
Keywords:Rotorstroemungen, Schwebeflug, Euler-Gleichungen, HELISHAPE, Blattnachlauf, Blattspitzenwirbel, Netzverfeinerung, Dissipation....
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L DT - Drehflüglertechnologien
DLR - Research theme (Project):L - The Quiet and Comfortable Rotorcraft (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: DLR-Beauftragter, elib
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:06

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.