Within the European project HELISHAPE (A Parametric Wind Tunnel Test on Rotorcraft Aerodynamics and Aeroacoustics), the Euler methods for the calculation of multibladed rotors in hovering flight, developed respectively by DLR and ONERA, have been compared and assessed. No prescribed wake model is used by both methods. In this work, the computations were performed on common single-block structure grids for two realistic four-bladed rotors of aspect ration equal to 15. The numerical results -obtained before the experimental date were available- compare fairly well with the experiment. Special attention is paid to the capture of the wake and the evolution of the tip vortex.
Euler calculations of multibladed rotors in Hover by DLR and ONERA methods and comparison with helishape tests
Euler-Berechnungen von mehrblättrigen Hubschrauberrotoren im Schwebeflug mit DLR- und ONERA-Methoden und Vergleich der Rechenergebnisse mit Helishape-Testdaten
Journal of the American Helicopter Society ; 43 , 4 ; 296-302
1998
7 Seiten, 14 Bilder, 23 Quellen
Article (Journal)
English
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