Hydrodynamic effects of the manta ray’s asymmetrical flapping on swimming depth variation

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

Abstract

Manta rays usually swim near the seafloor and surface of the ocean, and how they can reach different depths in the sea has not been researched. This work calculates the cownose ray swimming toward various depths with the up-and-down asymmetrical flapping. Our results demonstrate that the different degrees of the asymmetrical flapping enable the manta ray to swim upward and downward, while also adjusting the gradient of the depth change through the asymmetry of the flapping pectoral fins. This study provides insights into how the bio-ray swims ascents and descents to various depths by the pectoral fins’ asymmetrical flapping.

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
Pages1993-2000
Number of pages8
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

  • Asymmetrical flapping
  • Computational Fluid Dynamics
  • MPF
  • Manta Ray
  • Self-propelled

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