{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/36987"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/36987","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Development of a Sensor for Inflight Detection of Three-Dimensional Flow Separation on a Wing","abstract":"A real need exists for a sensor capable of detecting flow-field separation on an airplane wing during routine flight operations. A sensor of this type could lead to both improved flight safety and increased performance. It would also contribute to future separation control technologies. A new idea is presented for a sensor that is cost effective, easy to maintain, durable, and highly effective. The system, known as a Thermal Grid, works by using a grid of heaters and temperature sensors to trace out the streamlines closest to the surface. Specific singularities in these streamlines are excellent indicators of flow separation. This paper addresses many of the necessary principles that are necessary to making the Thermal Grid an operational device. An analytic design is presented that details the system requirements and potential performance, including heater/sensor spacing, heater power requirements, sensor time response and sensitivity needs and the effects of changes in flow conditions.","abstract_html":"A real need exists for a sensor capable of detecting flow-field separation on an airplane wing during routine flight operations. A sensor of this type could lead to both improved flight safety and increased performance. It would also contribute to future separation control technologies. A new idea is presented for a sensor that is cost effective, easy to maintain, durable, and highly effective. The system, known as a Thermal Grid, works by using a grid of heaters and temperature sensors to trace out the streamlines closest to the surface. Specific singularities in these streamlines are excellent indicators of flow separation. This paper addresses many of the necessary principles that are necessary to making the Thermal Grid an operational device. An analytic design is presented that details the system requirements and potential performance, including heater/sensor spacing, heater power requirements, sensor time response and sensitivity needs and the effects of changes in flow conditions.","abstract_has_math":false,"creators":["Gimbert, Norman Wesley II"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Aerospace and Ocean Engineering","degree_department":"Aerospace and Ocean Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":["Schetz, Joseph A."],"committee_members":["Simpson, Roger L.","Wlezien, RIchard W."],"year":1997,"date_issued":"1997-07-11","date_published":"1997-07-11","updated_at":"2026-07-22T22:19:48Z","subjects":["Separated Flow","Detector","Aircraft"],"languages":[],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-8197-115043"],"render_values":[{"text":"etd-8197-115043","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10919/36987","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeechair","label":"Committee Chair","values":["Schetz, Joseph A."]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Simpson, Roger L.","Wlezien, RIchard W."]},{"key":"dc:contributor.department","label":"Department","values":["Aerospace and Ocean Engineering"]},{"key":"dc:creator","label":"Author","values":["Gimbert, Norman Wesley II"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-03-14T20:52:25Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-03-14T20:52:25Z","1998-09-01"]},{"key":"dc:date.issued","label":"Date","values":["1997-07-11"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Tech"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Aerospace and Ocean Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Separated Flow","Detector","Aircraft"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-8197-115043"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/36987"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["A real need exists for a sensor capable of detecting flow-field separation on an airplane wing during routine flight operations. A sensor of this type could lead to both improved flight safety and increased performance. It would also contribute to future separation control technologies. A new idea is presented for a sensor that is cost effective, easy to maintain, durable, and highly effective. The system, known as a Thermal Grid, works by using a grid of heaters and temperature sensors to trace out the streamlines closest to the surface. Specific singularities in these streamlines are excellent indicators of flow separation. This paper addresses many of the necessary principles that are necessary to making the Thermal Grid an operational device. An analytic design is presented that details the system requirements and potential performance, including heater/sensor spacing, heater power requirements, sensor time response and sensitivity needs and the effects of changes in flow conditions."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:title","label":"Title","values":["Development of a Sensor for Inflight Detection of Three-Dimensional Flow Separation on a Wing"]}]}],"canonical_facts":{"dc:contributor.committeechair":["Schetz, Joseph A."],"dc:contributor.committeemember":["Simpson, Roger L.","Wlezien, RIchard W."],"dc:contributor.department":["Aerospace and Ocean Engineering"],"dc:creator":["Gimbert, Norman Wesley II"],"dc:date.accessioned":["2014-03-14T20:52:25Z"],"dc:date.available":["2014-03-14T20:52:25Z","1998-09-01"],"dc:date.issued":["1997-07-11"],"dc:description.abstract":["A real need exists for a sensor capable of detecting flow-field separation on an airplane wing during routine flight operations. 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