Mach Number Effect on the Aeroelastic Response of ONERA M6 Wing; Computational Studies Using Fully-Coupled Approach

Aeroelastic phenomena encountered during flight have considerable effects on the aerodynamic characteristics of fixed-wing aircraft. Transonic aeroelastic phenomena are often characterized by unique flow features which have complex ramifications for aircraft in transonic flight. Flutter is one of the undesired phenomena encountered in both fixed and rotary wings, and it impacts the structural integrity of the wing, which further impacts the overall aircraft life span and performance. Therefore, predicting the flutter phenomenon and identifying the factors that impact it, plays a critical role in the design and performance of aircraft. The flutter phenomenon is not fully understand and thus, it requires further studies. The present research concerns the development of aeroelastic computational methods for the prediction of flutter phenomenon and identifying the factor impacting the flutter at high speeds. Thus, in the present research a fully-coupled aeroelastic computational method is employed. The analysis is carried out for the transonic flow regimes.