The paper entitled “Modeling Contra-Rotating Turbomachinery Components for Engine Performance Simulations: The Geared Turbofan With Contra-Rotating Core Case” written by A. Alexiou et al. (Laboratory of Thermal Turbomachines of the National Technical University of Athens) has been awarded as Best Paper in ASME-TURBO Conference in the Cycle Innoation section. The paper was presented in Copenhagen in June 2012. This paper presents a method of modeling contra-rotating turbomachinery components for engine performance simulations in PROOSIS. Download the presentation of this paper here