Unsteady turbulent transonic flows over oscillating airfoils are investigated by using a novel third-order accurate scheme on block-structured meshes. Two turbulence models ( algebraic and two-transport equation models) are studied in order to generate flow fields in agreement with experimental data. Numerical results are presented for 2-D problems related to helicopter rotors in forward flight, including shock-stall phenomena. The advantages of using a high-order accurate method and a suitable turbulence model for this kind of applications are demonstrated.
Accurate simulation of turbulent transonic flows over oscillating airfoils
CINNELLA, Paola;
1998-01-01
Abstract
Unsteady turbulent transonic flows over oscillating airfoils are investigated by using a novel third-order accurate scheme on block-structured meshes. Two turbulence models ( algebraic and two-transport equation models) are studied in order to generate flow fields in agreement with experimental data. Numerical results are presented for 2-D problems related to helicopter rotors in forward flight, including shock-stall phenomena. The advantages of using a high-order accurate method and a suitable turbulence model for this kind of applications are demonstrated.File in questo prodotto:
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