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Fluid-structure simulation of multigait, jellyfish-like locomotor
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Dusane, Ajay. Fluid-structure simulation of multigait, jellyfish-like locomotor. Retrieved from https://doi.org/doi:10.7282/T3JQ147G

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TitleFluid-structure simulation of multigait, jellyfish-like locomotor
NameDusane, Ajay (author); Mazzeo, Aaron (chair); Diez, Javier (internal member); Denda, Mitsunori (internal member); Rutgers University; School of Graduate Studies
Date Created2018
Other Date2018-01 (degree)
SubjectMechanical and Aerospace Engineering, Fluid-structure interaction
Extent1 online resource (ix, 54 p. : ill.)
DescriptionThe current literature suggests that moon jellyfish are the most efficient underwater swimmers for their size. The objective of this thesis is to understand the gait- and material-specific fluid-structure interactions associated with the propulsion of moon jellyfish by simulating the motion, the mechanics, and fluid dynamics of moon jellyfish. The thesis uses a linear elastic material to describe the behavior of the silicone bell of the jellyfish made of Mold Star 30 and Ecoflex 30. Deflection-based experiments determined Young's modulus associated with these materials to be 1 MPa and 72 kPa, respectively for the range of strains typical of the flapping bell. To account for damping beyond that of the viscosity of the surrounding fluid, models incorporated Rayleigh damping or Maxwell and Kelvin-Voigt linear viscoelasticity. Parameters for these models came from the observed vibratory responses of elastomeric beams. Experiments and simulations with a flapping fin in water showed similar vortex shedding patterns. The axisymmetric, laminar jellyfish-like numerical model developed emulates contraction of muscles in a moon jellyfish. The numerical model demonstrates the starting and stopping vortices mentioned in the literature. Understanding the fluid-structure interactions associated with the jellyfish motion, effects of changing the dynamics of the motion have the potential to influence the design of high-efficiency underwater vehicles.
NoteM.S.
NoteIncludes bibliographical references
Noteby Ajay Dusane
Genretheses, ETD graduate
Persistent URLhttps://doi.org/doi:10.7282/T3JQ147G
Languageeng
CollectionSchool of Graduate Studies Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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