This work provides an extension to 3D aeroelastic problems of a recently developed numerical method for turbomachinery aeroelasticity. The unsteady Euler or Reynolds-averaged Navier-Stokes (RANS) equations are solved in integral form, the blade passages being discretised using a deforming grid. The grid is regenerated at each time step using a novel methodology, that automatically avoids grid lines overlapping and guarantees the smoothness of the regenerated mesh. Firstly, the method has been validated versus the 2D 4th Aeroelastic Turbine Standard Configuration. Both inviscid and viscous turbulent computations have been performed, and the results previously obtained usind a different moving grid strategy have been recovered. In order to prove the robustness of the proposed deforming grid methodology, the same case has also been computed with the blade under-going large torsion displacements, the regenerated grid always preserving a good smoothness. Then, the methodology has been validated versus the 3D 4th Standard Aeroelastic Configuration, that involves a rigid body blade motion. Finally, a more severe 3D configuration, involving a clamped-beam-like blade deformation, has been considered.
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ASME Turbo Expo 2004: Power for Land, Sea, and Air
June 14–17, 2004
Vienna, Austria
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-4171-5
PROCEEDINGS PAPER
A Numerical Method for 3D Turbomachinery Aeroelasticity
Paola Cinnella,
Paola Cinnella
Universita` di Lecce, Lecce, Italy
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Emanuele Cappiello,
Emanuele Cappiello
Politecnico di Bari, Bari, Italy
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Pietro De Palma,
Pietro De Palma
Politecnico di Bari, Bari, Italy
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Michele Napolitano,
Michele Napolitano
Politecnico di Bari, Bari, Italy
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Giuseppe Pascazio
Giuseppe Pascazio
Politecnico di Bari, Bari, Italy
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Paola Cinnella
Universita` di Lecce, Lecce, Italy
Emanuele Cappiello
Politecnico di Bari, Bari, Italy
Pietro De Palma
Politecnico di Bari, Bari, Italy
Michele Napolitano
Politecnico di Bari, Bari, Italy
Giuseppe Pascazio
Politecnico di Bari, Bari, Italy
Paper No:
GT2004-54060, pp. 539-550; 12 pages
Published Online:
November 24, 2008
Citation
Cinnella, P, Cappiello, E, De Palma, P, Napolitano, M, & Pascazio, G. "A Numerical Method for 3D Turbomachinery Aeroelasticity." Proceedings of the ASME Turbo Expo 2004: Power for Land, Sea, and Air. Volume 6: Turbo Expo 2004. Vienna, Austria. June 14–17, 2004. pp. 539-550. ASME. https://doi.org/10.1115/GT2004-54060
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