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Flexibility Enhancement of Euler Codes for Rotor Flow by Chimera Technique

Pahlke, K. (1994) Flexibility Enhancement of Euler Codes for Rotor Flow by Chimera Technique. 20th European Rotorcraft Forum, 4-7 October 1994, Amsterdam, Niederlande.

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Abstract

The implementation of a chimera grid scheme based on the Euler equations for steady and unsteady flows is described. At the chimera boundaries linear interpolation of flow quantities is used based on triangles or tetrahedrons. Conventional and chimera results are compared for steady and unsteady transonic 2D flows showing good agreement. The comparison of the solutions for a hovering rotor using a conventional 2 block and a chimera grid shows that a first order boundary treatment at inner boundaries is not sufficient. The chimera solution reproduced all flow features but the vortex is captured less sharply.

Document Type:Conference or Workshop Item (Paper)
Additional Information: institution=Netherlands Association of Aeronautical Engineers NVvL, National Aerospace Laboratory NLR, LIDO-Berichtsjahr=1994, pages=17,
Title:Flexibility Enhancement of Euler Codes for Rotor Flow by Chimera Technique
Authors:
AuthorsInstitution or Email of Authors
Pahlke, K.UNSPECIFIED
Date:1994
Status:Published
Keywords:Instationaere Stroemungen, Rotorstroemungen, Schwebeflug, Euler-Gleichungen, oszillierendes Profil, ueberlappende Netze,
Event Title:20th European Rotorcraft Forum, 4-7 October 1994, Amsterdam, Niederlande
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
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:05

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