Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):

M. De Gennaro, D. Caridi, C. Nicola:
"Noise Prediction of NASA SR2 Propeller in Transonic Conditions";
Vortrag: ICNAAM 2010 - International Conference of Numerical Analysis and Applied Mathematics 2010, Rhodos, Griechenland; 19.09.2010 - 25.09.2010; in: "ICNAAM 2010 - International Conference of Numerical Analysis and Applied Mathematics", American Institute of Physics, Volume 1281 (2010), ISBN: 978-0-7354-0831-9; S. 167 - 170.



Kurzfassung englisch:
In this paper we propose a numerical approach for noise prediction of high-speed propellers for Turboprop applications. It is based on a RANS approach for aerodynamic simulation coupled with Ffowcs Williams-Hawkings (FWH) Acoustic Analogy for propeller noise prediction. The test-case geometry adopted for this study is the 8-bladed NASA SR2 transonic cruise propeller, and simulated Sound Pressure Levels (SPL) have been compared with experimental data
available from Wind Tunnel and Flight Tests for different microphone locations in a range of Mach numbers between 0.78 and 0.85 and rotational velocities between 7000 and 9000 rpm. Results show the ability of this approach to predict noise to within a few dB of experimental data. Moreover corrections are provided to be applied to acoustic numerical results in order for them to be compared with Wind Tunnel and Flight Test experimental data, as well computational grid requirements and guidelines in order to perform complete aerodynamic and aeroacoustic calculations with highly competitive computational cost.

Schlagworte:
CFD, Aeroacoustics, Ffowcs Williams-Hawkings Acoustic Analogy, Transonic Cruise Propeller, NASA-SR2


Elektronische Version der Publikation:
http://pubdb.ait.ac.at/files/PubDat_AIT_129834.pdf


Erstellt aus der Publikationsdatenbank des AIT Austrian Institute of Technology.