Mechanics & Industry
Volume 15, Number 1, 2014
|Page(s)||19 - 28|
|Published online||07 April 2014|
A numerical insight into contra-rotating open rotor in-plane loads
Airbus Operations S.A.S., Aerodynamic Design and Data
Department, 316 route de
Toulouse Cedex 9,
2 CERFACS, CFD Team, 42 avenue Gaspard Coriolis, 31057 Toulouse, France
3 Onera – The French Aerospace Lab, Applied Aerodynamics Department, 8 rue des Vertugadins, 92190 Meudon, France
a Corresponding author: firstname.lastname@example.org
Received: 3 July 2013
Accepted: 21 January 2014
This paper presents the comparison of results obtained from two codes with different degrees of accuracy and computational time on the case of a contra-rotating open rotor (AI-PX7). The main goal is to assess the capacity of a code based on singularity methods to predict global open rotor performance, the in-plane loads (also called 1P loads), and the blade load distribution during a full blade cycle. Moreover, installation and unsteady correction models have been implemented in this code in order to evaluate the possible improvements of initial predictions. Finally, a numerical method to quantify some of the mechanisms governing open rotor thrust and 1P loads is proposed.
Key words: Open rotor / in-plane loads / unsteady thin-airfoil theory
© AFM, EDP Sciences 2014
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