03.1 - Aerodynamics – CFD Methods and Validation
IDENTIFICATION METHOD OF LONGITUDINAL COEFFICIENTS BASED ON THE NUMERICAL STUDY OF THE FLOW TOPOLOGY AROUND THE SACCON GEOMETRY
B. Isnard¹, G. Tanguy¹, D. Farcy¹, E. Garnier¹, J.-M. Foucault, LMFL, France; ¹ONERA, France
This paper presents a new model for representing the aerodynamic torsor based on the flow topology on the upper surface of the SACCON geometry. In particular, it takes into account the evolution of flow dynamics as the angle of attack increases or decreases. Among other things, this model provides an improved representation of aerodynamic coefficients at high angles of attack.