Abstract
Aim of this work is the analysis of the flow in the stern region by simulations. In this work will be reported the numerical analysis of the flow around the propeller working in a stern-tunnel of a fully appended twin–screw fast displacement M/Y. Particularly, the aim of the study is the evaluation of the effects on the pressure and on the wake in the tunnel region, due to the diameter variations of the propellers. The analysis is organized in two stages. The first stage is the preliminary validation analysis, in order to characterize the initial propeller by Reynolds Averaged Navier Stokes (RANS) simulations of open water propeller tests. The second stage is the Unsteady RANS simulations, performed in the time domain, in order to investigate the interaction between tip clearance reductions and increasing of pressure pulsations on the tunnel’s surface.
| Original language | English |
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| Title of host publication | Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019 |
| Editors | Petar Georgiev, C. Guedes Soares |
| Publisher | CRC Press/Balkema |
| Pages | 222-227 |
| Number of pages | 6 |
| ISBN (Print) | 9780367409517 |
| Publication status | Published - 2020 |
| Event | 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019 - Varna, Bulgaria Duration: 9 Sept 2019 → 11 Sept 2019 |
Publication series
| Name | Sustainable Development and Innovations in Marine Technologies - Proceedings of the 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019 |
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Conference
| Conference | 18th International Congress of the International Maritime Association of the Mediterranean, IMAM 2019 |
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| Country/Territory | Bulgaria |
| City | Varna |
| Period | 9/09/19 → 11/09/19 |
Bibliographical note
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