Computational fluid dynamics and hydroacoustics analyses of underwater radiated noise of an ice breaker ship

Ville Viitanen (Corresponding Author), Antti Hynninen, Tuomas Sipilä

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

Flow and acoustics analyses have been carried out for an ice breaker ship. The numerical acoustic solution relies on the computational fluid dynamics simulations with regard to the sound generation. The numerical method for acoustics is based on a wave equation for the density perturbations which is solved using an acoustic finite element method. The simulations are compared to full-scale underwater noise measurements, as well as model-scale measurements conducted in a cavitation tunnel. The hydrodynamic performance of the thruster unit was well captured in the numerical simulations. The flow around the unit was visualized, and different hydrodynamic noise sources caused by the propulsion system were investigated. The hydrodynamic noise of the ship was decently captured in the simulations.

Original languageEnglish
Article number114264
Number of pages12
JournalOcean Engineering
Volume279
DOIs
Publication statusPublished - 1 Jul 2023
MoE publication typeA1 Journal article-refereed

Keywords

  • Computational fluid dynamics
  • Computational hydroacoustics
  • Hybrid CFD-CHA simulation
  • Ship hydroacoustics

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