{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/163432"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/163432","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Hydrodynamic Behavior of Pop-Up Satellite Archival Tags (PSAT) Subject to Vortices","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.","abstract_html":"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.","abstract_has_math":false,"creators":["Hoo, Stephanie"],"institution":"Massachusetts Institute of Technology","degree_name":"Master","degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Mechanical Engineering","school":null,"contributors":[],"advisors":["Leonard, John"],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-05","date_published":"2025-05","updated_at":"2026-07-22T22:22:21Z","subjects":[],"languages":[],"rights":["Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","Copyright retained by author(s)"],"rights_urls":["https://creativecommons.org/licenses/by-nc-nd/4.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1721.1/163432","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Leonard, John"]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. 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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."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.M."]},{"key":"dc:title","label":"Title","values":["Hydrodynamic Behavior of Pop-Up Satellite Archival Tags (PSAT) Subject to Vortices"]}]}],"canonical_facts":{"dc:contributor.advisor":["Leonard, John"],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Mechanical Engineering"],"dc:creator":["Hoo, Stephanie"],"dc:date.accessioned":["2025-10-29T17:40:52Z"],"dc:date.available":["2025-10-29T17:40:52Z"],"dc:date.issued":["2025-05"],"dc:description.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."],"dc:description.degree":["S.M."],"dc:identifier.uri":["https://hdl.handle.net/1721.1/163432"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","Copyright retained by author(s)"],"dc:rights.uri":["https://creativecommons.org/licenses/by-nc-nd/4.0/"],"dc:title":["Hydrodynamic Behavior of Pop-Up Satellite Archival Tags (PSAT) Subject to Vortices"],"dc:type":["Thesis"],"thesis:degree_name":["Master","Master of Science in Mechanical Engineering"]},"updated_at":"2026-07-22T22:22:21Z"}