Optimum gaits of 2D thunniform locomotion for efficient swimming and performance of fish pair

Yi Qin Xu, Yulia Peet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


The goal of this paper is to determine the optimum modes of aquatic locomotion for a tuna-like thunniform swimmer under water, and study the performance of paired thunniform swimmers. The computational framework is developed that couples a high-order fully-resolved numerical simulation of self-propelling flexible thunniform swimmer with the gradient-free optimization procedure based on evolutionary algorithm. The optimization is performed to find the optimum kinematic gaits of a single swimmer which are cost-efficient in start-up propulsion or maintaining constant speed. The performance of a fish pair is investigated under a selected swimming mode with various lateral separation distance under in-phase and anti-phase configuration.

Original languageEnglish (US)
Title of host publication2018 Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105531
StatePublished - 2018
Event48th AIAA Fluid Dynamics Conference, 2018 - Atlanta, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 Fluid Dynamics Conference


Other48th AIAA Fluid Dynamics Conference, 2018
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering
  • Engineering (miscellaneous)


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