Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Cavitation dynamics and underwater radiated noise signature of a ship with a cavitating propeller
SSPA Sweden AB, Sweden.ORCID iD: 0000-0002-5364-4948
SSPA Sweden AB, Sweden.
SSPA Sweden AB, Sweden.
SSPA Sweden AB, Sweden.
2015 (English)In: MARINE 2015 - Computational Methods in Marine Engineering VI, International Center for Numerical Methods in Engineering , 2015, p. 401-412Conference paper, Published paper (Refereed)
Abstract [en]

The paper presents SSPA's work in the EU project AQUO to predict underwater radiated noise (URN) generated by a coastal tanker with a cavitating propeller. A CFD method, consisting of a multi-phase Delayed Detached Eddy Simulation (DDES) and a Ffowcs Williams-Hawkings (FWH) acoustic analogy, is applied to predict the cavitation, pressure pulses and radiated noise for the ship at model and full scale. In comparison with the data obtained from the model test and full scale measurement, it is found that the predicted sheet cavity correlates quite well with the observed ones in the experiment and sea trial. Some success is made in predicting the collapse and rebound of tip vortex cavitation (TVC) at model scale, yet the extension of TVC is under-predicted. The predicted pressure pulses agree reasonably well with the measured ones at the first three harmonics, deviation becomes larger at higher harmonics. The tonal noise has fairly good agreement with the measured signal at both scales up to 5th harmonics. The simulation however under-predicts part of broadband noise that is caused by the TVC, mainly due to an under-resolution of the flow in the tip region and the propeller wake. The agreement with the data for the model scale case is slightly better than that for the full scale case.

Place, publisher, year, edition, pages
International Center for Numerical Methods in Engineering , 2015. p. 401-412
Keywords [en]
Cavitation, Pressure pulses, Propeller, Underwater radiated noise, Acoustic noise, Acoustic noise measurement, Computational fluid dynamics, Computational methods, Forecasting, Harmonic analysis, Marine engineering, Propellers, Ships, Cavitating propellers, Delayed detached eddy simulation (DDES), Full scale measurements, Higher harmonics, Measured signals, Pressure pulse, Radiated noise, Tip vortex cavitations, Ship propulsion
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:ri:diva-71837Scopus ID: 2-s2.0-84938823592ISBN: 9788494392863 (print)OAI: oai:DiVA.org:ri-71837DiVA, id: diva2:1839262
Conference
6th International Conference on Computational Methods in Marine Engineering, MARINE 2015, 15 June 2015 through 17 June 2015
Available from: 2024-02-20 Created: 2024-02-20 Last updated: 2024-02-20Bibliographically approved

Open Access in DiVA

No full text in DiVA

Scopus

Authority records

Li, Da-Qing

Search in DiVA

By author/editor
Li, Da-Qing
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 10 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf