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Numerical investigation of fluid flow surrounding a submarine

  • Northwestern Polytechnical University Xian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Numerical analysis based on stress-breeding eddy simulation (SBES) is carried out for the submarine at different speeds. The strengths of the two typical vortex structures were firstly compared, and the strength of the horseshoe vortex was larger than that of the top tip vortex. Then the effects of the sail with and without filler corner on the submarine's drag and the strength of the horseshoe vortex were compared, the results showed that adding the filler corner could reduce the drag and decrease the strength and size of the horseshoe vortex. Finally, inspired by the silent flight of the owl, the sawtooth structure of the owl is applied to the shape design of outfitting parts, the results show that the sawtooth structure can reduce the flow noise of the submarine.

Original languageEnglish
Title of host publicationProceedings of the 35th International Ocean and Polar Engineering Conference, 2025
EditorsJin S. Chung, Shiqiang Yan, Igor Buzin, Ivana Kubat, Frank K Lim, Bor-Feng Peng, Ali Reza, Suak Ho Van, Decheng Wan, Satoru Yamaguchi
PublisherInternational Society of Offshore and Polar Engineers
Pages1742-1747
Number of pages6
ISBN (Print)9781880653746
StatePublished - 2025
Event35th Annual International Ocean and Polar Engineering Conference, ISOPE 2025 - Seoul/Goyang, Korea, Republic of
Duration: 1 Jun 20256 Jun 2025

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference35th Annual International Ocean and Polar Engineering Conference, ISOPE 2025
Country/TerritoryKorea, Republic of
CitySeoul/Goyang
Period1/06/256/06/25

Keywords

  • Flow noise
  • Submarine
  • The horseshoe vortex

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