A cfd-based assessment of undulating propulsion

George Loubimov, Michael P. Kinzel

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

2 Scopus citations

Abstract

Undulation is a biological form of propulsion involving oscillatory motions of surfaces typically for propulsion. In this effort, computational fluid dynamics (CFD) is used to advance the understanding of pairs of undulating foils for moderate Reynolds number flows, how they interact, and their factors leading to efficiency. The CFD accuracy is established through a benchmark study using experimental data of heaving hydrofoils. Following this, a pair of foils are prescribed heave-pitch motions and evaluated in a parametric study of various displacements to understand the effects of shed vortexes on heaving and pitching foil boundaries. Lastly, a parametric study is performed for the pair of undulating foils as well as in the context of schooling, undulating objects. Our results show multiple fluid responses to varying motion parameters and the effects of vortex shearing on thrust generation.

Original languageEnglish (US)
Title of host publicationAIAA Aviation 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-15
Number of pages15
ISBN (Print)9781624105890
DOIs
StatePublished - 2019
EventAIAA Aviation 2019 Forum - Dallas, United States
Duration: Jun 17 2019Jun 21 2019

Publication series

NameAIAA Aviation 2019 Forum

Conference

ConferenceAIAA Aviation 2019 Forum
CountryUnited States
CityDallas
Period6/17/196/21/19

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Aerospace Engineering

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