Computational study of the three-dimensional wake and performance of a trapezoidal pitching panel

Ayodeji T. Bode-Oke, Haibo Dong, Justin King, Rajeev Kumar, Melissa Green

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

Abstract

Fish primarily propel themselves forward at moderate to high swimming speeds by undulating their bodies and oscillating their caudal fins which can be found in diverse shapes and aspect ratios. The caudal fin leaves behind a complex hydrodynamic footprint; a three-dimensional wake which exhibits different characteristics at different flow conditions and swimming speeds. In this study, a computational investigation is performed on the wake characteristics and performance of a fish-like caudal fin simplified as a trapezoidal panel undergoing pitch motion in a Strouhal number range of 0.17-0.56 and varying aspect ratio (2-8). Emphasis is placed on validating the flow structures from previous experimental measurements, providing performance data which is lacking in current literature on trapezoidal panels and correlating the wake structures to the performance of the plate at low Reynolds numbers to offer insight in the design of underwater propulsion systems.

Original languageEnglish (US)
Title of host publicationAIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Edition210059
ISBN (Print)9781624105241
DOIs
StatePublished - 2018
EventAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
Duration: Jan 8 2018Jan 12 2018

Publication series

NameAIAA Aerospace Sciences Meeting, 2018
Number210059

Other

OtherAIAA Aerospace Sciences Meeting, 2018
CountryUnited States
CityKissimmee
Period1/8/181/12/18

ASJC Scopus subject areas

  • Aerospace Engineering

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    Bode-Oke, A. T., Dong, H., King, J., Kumar, R., & Green, M. (2018). Computational study of the three-dimensional wake and performance of a trapezoidal pitching panel. In AIAA Aerospace Sciences Meeting (210059 ed.). (AIAA Aerospace Sciences Meeting, 2018; No. 210059). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2018-0814