Abstract
This study implements leading-edge (LE) tubercles on a benchmark 19A accelerating duct to investigate the impact on the hydrodynamic performance and propeller wake flow development at multiple operating conditions. The study was conducted using Computational Fluid Dynamics (CFD) where the sliding mesh technique was used to describe the propeller rotation and the hydrodynamic flow-field was solved using Improved Delayed Detached Eddy Simulations (IDDES). In summary, it was found that LE tubercles can enhance the thrust of the duct by a maximum of 7.15% and disrupt the coherent vortex structure of the benchmark ducted propeller which will likely influence the noise signature of the propulsor.
| Original language | English |
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| Number of pages | 8 |
| Publication status | Published - 25 Jun 2021 |
| Event | The 31st (2021) International Ocean and Polar Engineering Conference: ISOPE-2021 - Rhodes, Greece Duration: 20 Jun 2021 → 25 Jun 2021 https://www.isope.org/conferences-symposia-and-workshops/ |
Conference
| Conference | The 31st (2021) International Ocean and Polar Engineering Conference |
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| Abbreviated title | ISOPE-2021 |
| Country/Territory | Greece |
| Period | 20/06/21 → 25/06/21 |
| Internet address |
Keywords
- leading-edge tubercles
- biomimetics
- ducted propeller
- CFD
- wake dynamics