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Pahlke, K. and Raddatz, J. (1993) 3D Euler Methods for Multibladed Rotors in Hover and Forward Flight. In: Proc. 19th European Rotorcraft Forum, 14.-16.9.1993, Cernobbio (Como), Italien..
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Abstract
The flowfield of a hovering rotor is calculated solving the Euler equations formulated in terms of the absolute flow variables in a blade attached coordinate system. Results for two hover cases with multibladed rotors have been presented, which show a good agreement between calculation and experiment. Due to the implementation of a multi-grid technique the computing times for hover calculations could be reduced considerably. The change of the discretization scheme form a cell centered to a cell vertex scheme shows advantages in the accuracy of the results, if the same computational grids were used. On the other hand a further convergence acceleration can be obtained, because coarser grids can be used without losses of accuracy. A time-accurate 3D Euler method for rotors in forward flight has been developed. Results for two non-lifting and three lifting forward flight cases have been presented. The agreement between.
| Item URL in elib: | https://elib.dlr.de/36469/ | |||||||||
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| Document Type: | Conference or Workshop Item (Paper) | |||||||||
| Additional Information: | LIDO-Berichtsjahr=1996, pages=12, | |||||||||
| Title: | 3D Euler Methods for Multibladed Rotors in Hover and Forward Flight. | |||||||||
| Authors: |
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| Date: | 1993 | |||||||||
| Journal or Publication Title: | Proc. 19th European Rotorcraft Forum, 14.-16.9.1993, Cernobbio (Como), Italien. | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Status: | Published | |||||||||
| Keywords: | Instationäre Strömungen, Rotorumströmungen, Rotor im Vorwärtsflug mit Auftrieb, Rotor im Schwebeflug, Abwindmodell, Euler-Gleichungen.. | |||||||||
| 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 |
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