The influence of leading-edge tubercles on the hydrodynamic performance and propeller wake flow development of a ducted propeller

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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 languageEnglish
Number of pages8
Publication statusPublished - 25 Jun 2021
EventThe 31st (2021) International Ocean and Polar Engineering Conference: ISOPE-2021 - Rhodes, Greece
Duration: 20 Jun 202125 Jun 2021
https://www.isope.org/conferences-symposia-and-workshops/

Conference

ConferenceThe 31st (2021) International Ocean and Polar Engineering Conference
Country/TerritoryGreece
Period20/06/2125/06/21
Internet address

Keywords

  • leading-edge tubercles
  • biomimetics
  • ducted propeller
  • CFD
  • wake dynamics

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