The simulation of cavitating flow is a difficult task, due to the large density ratio between liquid and vapor phases. Investigation of currently known cavitation and turbulence models and their mutual interaction can be a significant asset to improving their performance. Several previous works present results on cavitating flows obtained by various physical models, that mainly differ by the treatment of the mass transfer calculation between vapor and liquid phases. In this study different cavitation models have been implemented in a commercial, general-purpose CFD code (Fluent), and numerical results were compared to experimental ones. Different turbulence models have been also compared, in particularly, to improve numerical simulations by taking into account the influence of the compressibility of two-phase medium on turbulence, a modified k-ε RNG model and compared with the standard model. The simulations were carried out on 2D hydrofoil with an Eppler E817 cross section. The inception cavitation number, the cavity length and the pressure coefficients have been compared with the experimental data.
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ASME 2005 Fluids Engineering Division Summer Meeting
June 19–23, 2005
Houston, Texas, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4198-7
PROCEEDINGS PAPER
Comparison of Different Physical Models for the Simulation of Cavitating Flows Around a Hydrofoil Available to Purchase
Maria Grazia De Giorgi,
Maria Grazia De Giorgi
University of Lecce, Lecce, Italy
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Antonio Ficarella,
Antonio Ficarella
University of Lecce, Lecce, Italy
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Domenico Laforgia
Domenico Laforgia
University of Lecce, Lecce, Italy
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Maria Grazia De Giorgi
University of Lecce, Lecce, Italy
Antonio Ficarella
University of Lecce, Lecce, Italy
Domenico Laforgia
University of Lecce, Lecce, Italy
Paper No:
FEDSM2005-77142, pp. 797-805; 9 pages
Published Online:
October 13, 2008
Citation
De Giorgi, MG, Ficarella, A, & Laforgia, D. "Comparison of Different Physical Models for the Simulation of Cavitating Flows Around a Hydrofoil." Proceedings of the ASME 2005 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A and B. Houston, Texas, USA. June 19–23, 2005. pp. 797-805. ASME. https://doi.org/10.1115/FEDSM2005-77142
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