Valentina Collesei
Large-eddy Simulation on the Cavitating Turbulent Flow around a Hydrofoil Considering the Cavity Generation from SGS Vortices.
Rel. Domenic D'Ambrosio. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Aerospaziale, 2026
|
Preview |
PDF (Tesi_di_laurea)
- Tesi
Licenza: Creative Commons Attribution Non-commercial No Derivatives. Download (24MB) | Preview |
Abstract
The subject of this project is the analysis of Large Eddy Simulation (LES) results using a new cavitation model that accounts for the influence of cavities generated by turbulent vortices in the sub-grid scale, which are often approximated using eddy viscosity in LES models. This is achieved by implementing a probabilistic approach (PDF model) that bridges the gap between the filtered pressure field and the local microscopic pressure drops. The research is divided into two main computational setups. In the first case, characterized by a moderate angle of attack, the study demonstrates how the inclusion of SGS pressure fluctuations significantly improves the prediction of the sheet-to-cloud cavitation transition, which is often underestimated by conventional models.
The second case explores a flow regime with a higher angle of attack, where the interaction between turbulent detachment and cavitation becomes dominant
Relatori
Anno Accademico
Tipo di pubblicazione
Numero di pagine
Corso di laurea
Classe di laurea
Ente in cotutela
Aziende collaboratrici
URI
![]() |
Modifica (riservato agli operatori) |
