21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-5.10.2

EULER /NAVIER-STOKES SIMULATION FOR PROPULSION-AIRFRAME INTEGRATION OF ADVANCED PROPELLER-DRIVEN AIRCRAFT IN THE EUROPEAN RESEARCH PROGRAMS GEMINI/ APIAN

Amato M., Boyle F.*, Eaton J. A.*, Gardarein P.**
CIRA, Italy; *National University of Ireland, Galway, Ireland; **ONERA, France

Keywords: euler /navier-stokes simulation, propulsion-airframe, propeller, gemini / apian

Power plant design and installation are critical factors In the design and realisation of competitive aircraft. The synergetic and integrated use of experimental and numerical techniques is mandatory to effectively design new aeroplanes. The propulsion-airframe integration is the subject of various EC funded projects. In this paper, the GEMINI II and APIAN projects are described; the topic area is the propulsion airframe integration for a generic propeller driven regional commuter flying in transonic conditions. The main focus of this paper is on a discussion of the CFO activities realised within these projects and obtained results. These activities are as follows: isolated propeller aerodynamic analysis; actuator disk modelling; wing installation effects on propeller aerodynamics; aerodynamic prediction of the flow about a fuselage-wing nacelle configuration with propeller slipstream simulation. A comparison of some computed and experimental results for the GEMINI II models are presented. These results clearly show the capability of analysing the problems related to propulsion-airframe integration.

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