Hydrodynamic Behavior of Pop-Up Satellite Archival Tags (PSAT) Subject to Vortices
Name
hoo-stephoo-smme-meche-2025-thesis.pdf
Description
Thesis PDF
Size
5.4 MB
Format
Adobe PDF
Checksum (MD5)
675d108fdc916d291f44516c6f964f2a
Author(s)
Hoo, Stephanie
Advisor(s)
Leonard, John
Date Issued
May 2025
Publisher
Massachusetts Institute of Technology
Abstract
Pop-up Satellite Archival Tags (PSATs) are a combination of satellite and archival tags used by marine biologists to collect large scale movement and behavioral data of large pelagic life for up to two years [1]. However, current commercial PSATs have an unusually high failure rate when tagged on tuna and cost upwards of $4000, making it both difficult and expensive to collect data [14]. Upon investigation, the top two failure modes of tuna-affixed PSATs have been identified as drag from movement/tissue healing and pressure cycling [14]. Current commercial PSAT manufacturers do not account for the vortices shed by fish when testing their designs— a large oversight that could account for their high failure rate [15]. The work herein determined the effects of vortex shedding on PSAT hydrodynamic behavior, used these results to inform the design of novel PSAT body shapes, and conducted a head-to-head comparison of these designs with existing commercial PSATs.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
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