{"id":{"repo_id":"unm","oai_identifier":"oai:digitalrepository.unm.edu:me_etds-1057"},"canonical_url":"https://search.dev.ndltd.org/etd/unm/oai:digitalrepository.unm.edu:me_etds-1057","repository":{"repo_id":"unm","name":"University of New Mexico","base_url":"https://digitalrepository.unm.edu/do/oai/"},"display":{"title":"Planar shock wave interaction with a multiphase cylinder","abstract":"We present an experimental study that visualizes the effects of a planar shock front passing through air (or SF6) randomly seeded with glycol droplets or smoke particles. It was observed, using a high-speed multiple-CCD (charge coupled device) camera, that an instability occurs as the shock wave bypasses the slow-moving column of gas. This produced evident perturbation at the interface. The flow morphology of the gas column consists of a pair of counter-rotating vortices that develops downstream from the initial conditions as well as some secondary instabilities (in certain cases). Some images also show a trailing tail due to larger particles lagging behind the flow. The data and images obtained in the experiments were gathered using a tilt-able shock tube made of solid stock aluminum, two green-light lasers, and other high-speed diagnostics. Our experimental data cover a range of Mach numbers from 1.22 to 2.02. Each experimental run was performed with the shock tube in the horizontal position, causing only 2-D visualization effects.","abstract_html":"We present an experimental study that visualizes the effects of a planar shock front passing through air (or SF6) randomly seeded with glycol droplets or smoke particles. It was observed, using a high-speed multiple-CCD (charge coupled device) camera, that an instability occurs as the shock wave bypasses the slow-moving column of gas. This produced evident perturbation at the interface. The flow morphology of the gas column consists of a pair of counter-rotating vortices that develops downstream from the initial conditions as well as some secondary instabilities (in certain cases). Some images also show a trailing tail due to larger particles lagging behind the flow. The data and images obtained in the experiments were gathered using a tilt-able shock tube made of solid stock aluminum, two green-light lasers, and other high-speed diagnostics. Our experimental data cover a range of Mach numbers from 1.22 to 2.02. Each experimental run was performed with the shock tube in the horizontal position, causing only 2-D visualization effects.","abstract_has_math":false,"creators":["Conroy, Joseph"],"institution":null,"degree_name":"Mechanical Engineering","degree_level":"Masters","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Vorobieff, Peter","Truman, Randall","Nygren, Richard"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-07-02T07:00:00Z","date_published":"2012-07-02T07:00:00Z","updated_at":"2026-07-24T05:27:04Z","subjects":["Shear flow","Vortex-motion","Shock waves","Stokes equations","Shock tubes."],"languages":["English"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalrepository.unm.edu/me_etds/58"],"render_values":[{"text":"https://digitalrepository.unm.edu/me_etds/58","href":"https://digitalrepository.unm.edu/me_etds/58","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/1928/20763","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Vorobieff, Peter","Truman, Randall","Nygren, Richard"]},{"key":"dc:creator","label":"Author","values":["Conroy, Joseph"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters","Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Mechanical Engineering"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Shear flow","Vortex-motion","Shock waves","Stokes equations","Shock tubes."]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/1928/20763","https://digitalrepository.unm.edu/me_etds/58"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["We present an experimental study that visualizes the effects of a planar shock front passing through air (or SF6) randomly seeded with glycol droplets or smoke particles. It was observed, using a high-speed multiple-CCD (charge coupled device) camera, that an instability occurs as the shock wave bypasses the slow-moving column of gas. This produced evident perturbation at the interface. The flow morphology of the gas column consists of a pair of counter-rotating vortices that develops downstream from the initial conditions as well as some secondary instabilities (in certain cases). Some images also show a trailing tail due to larger particles lagging behind the flow. The data and images obtained in the experiments were gathered using a tilt-able shock tube made of solid stock aluminum, two green-light lasers, and other high-speed diagnostics. Our experimental data cover a range of Mach numbers from 1.22 to 2.02. Each experimental run was performed with the shock tube in the horizontal position, causing only 2-D visualization effects."]},{"key":"dc:title","label":"Title","values":["Planar shock wave interaction with a multiphase cylinder"]}]}],"canonical_facts":{"dc:contributor":["Vorobieff, Peter","Truman, Randall","Nygren, Richard"],"dc:creator":["Conroy, Joseph"],"dc:description.abstract":["We present an experimental study that visualizes the effects of a planar shock front passing through air (or SF6) randomly seeded with glycol droplets or smoke particles. It was observed, using a high-speed multiple-CCD (charge coupled device) camera, that an instability occurs as the shock wave bypasses the slow-moving column of gas. This produced evident perturbation at the interface. The flow morphology of the gas column consists of a pair of counter-rotating vortices that develops downstream from the initial conditions as well as some secondary instabilities (in certain cases). Some images also show a trailing tail due to larger particles lagging behind the flow. The data and images obtained in the experiments were gathered using a tilt-able shock tube made of solid stock aluminum, two green-light lasers, and other high-speed diagnostics. Our experimental data cover a range of Mach numbers from 1.22 to 2.02. Each experimental run was performed with the shock tube in the horizontal position, causing only 2-D visualization effects."],"dc:identifier":["http://hdl.handle.net/1928/20763","https://digitalrepository.unm.edu/me_etds/58"],"dc:language":["English"],"dc:subject":["Shear flow","Vortex-motion","Shock waves","Stokes equations","Shock tubes."],"dc:title":["Planar shock wave interaction with a multiphase cylinder"],"thesis:degree_discipline":["Mechanical Engineering"],"thesis:degree_level":["Masters","Thesis"],"thesis:degree_name":["Mechanical Engineering"]},"updated_at":"2026-07-24T05:27:04Z"}