Reduced order modelling based on POD method for 3D nonlinear aeroelasticity

Authors:
Zhengkun Feng;Azzeddine Soulaimani
Affiliations:
Department of Mechanical Engineering, École de Technologie Supérieure, Montreal, QC, Canada;Department of Mechanical Engineering, École de Technologie Supérieure, Montreal, QC, Canada
Venue:
MOAS'07 Proceedings of the 18th conference on Proceedings of the 18th IASTED International Conference: modelling and simulation
Year:
2007

Citing 3
Cited 0

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Abstract

This paper deals with reduced order modelling of a three-dimensional nonlinear aeroelasticity system with moving fluid boundaries in transonic flow. The reduced order model with POD method was based on a three-field coupled full order model, characterized by a moving mesh. It is focused on the fluid model where the most computational load of the coupled model locates. The nonlinear local residual of the full order fluid model was projected onto a POD basis. The reduced order system was resolved by the Newton-GMRES iterative algorithm. Validation of the coupled reduced order model was performed on the aeroelastic wing AGARD 445.6 subjected to unsteady transonic flow. Numerical simulations shows good agreement of the reduced order model with the full order model.