{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/99404"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/99404","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Investigation on weakly curved counterflow diffusion flames at infinitely fast chemistry","abstract":"We investigate the behavior of a counterflow diffusion flame subject to a flow field comprising of a first order potential flow superimposed on a weak second order correction to the potential flow. An Arrhenius one-step irreversible reaction model at infinite Damkohler number and constant density is considered. This simplified model is then used to study the distribution of fuel and oxidizer mass fractions, shape of the reaction sheet, and the temperature field. The temperature of the reaction sheet for the unity Lewis numbers is constant and is shown to be equal to the adiabatic flame temperature. The temperature of the reaction for the unequal Lewis number case is also shown to be constant and is equal to the stoichiometric flame temperature. In addition, we also show that the reaction sheet always takes the shape of the seperatrix, independent of fuel-oxidizers Lewis numbers and mixture strength.","abstract_html":"We investigate the behavior of a counterflow diffusion flame subject to a flow field comprising of a first order potential flow superimposed on a weak second order correction to the potential flow. An Arrhenius one-step irreversible reaction model at infinite Damkohler number and constant density is considered. This simplified model is then used to study the distribution of fuel and oxidizer mass fractions, shape of the reaction sheet, and the temperature field. The temperature of the reaction sheet for the unity Lewis numbers is constant and is shown to be equal to the adiabatic flame temperature. The temperature of the reaction for the unequal Lewis number case is also shown to be constant and is equal to the stoichiometric flame temperature. In addition, we also show that the reaction sheet always takes the shape of the seperatrix, independent of fuel-oxidizers Lewis numbers and mixture strength.","abstract_has_math":false,"creators":["Vempati, Naga Saras Chandan"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Matalon, Moshe"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-03-13T15:49:09Z","date_published":"2018-03-13T15:49:09Z","updated_at":"2026-07-22T22:24:37Z","subjects":["Combustion","Modeling","Counterflow diffusion flames"],"languages":["en"],"rights":["Copyright 2017 Naga Saras Chandan Vempati"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/99404","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Matalon, Moshe"]},{"key":"dc:creator","label":"Author","values":["Vempati, Naga Saras Chandan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-03-13T15:49:09Z","2017-12-14","2017-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Combustion","Modeling","Counterflow diffusion flames"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2017 Naga Saras Chandan Vempati"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/99404"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["We investigate the behavior of a counterflow diffusion flame subject to a flow field comprising of a first order potential flow superimposed on a weak second order correction to the potential flow. An Arrhenius one-step irreversible reaction model at infinite Damkohler number and constant density is considered. This simplified model is then used to study the distribution of fuel and oxidizer mass fractions, shape of the reaction sheet, and the temperature field. The temperature of the reaction sheet for the unity Lewis numbers is constant and is shown to be equal to the adiabatic flame temperature. The temperature of the reaction for the unequal Lewis number case is also shown to be constant and is equal to the stoichiometric flame temperature. In addition, we also show that the reaction sheet always takes the shape of the seperatrix, independent of fuel-oxidizers Lewis numbers and mixture strength.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2018-03-13 without embargo terms","The student, Naga Saras Chandan Vempati, accepted the attached license on 2017-12-14 at 14:24.","The student, Naga Saras Chandan Vempati, submitted this Thesis for approval on 2017-12-14 at 14:28.","This Thesis was approved for publication on 2017-12-14 at 15:59.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11922 on 2018-03-13 at 10:11:53","Made available in DSpace on 2018-03-13T15:49:09Z (GMT). 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An Arrhenius one-step irreversible reaction model at infinite Damkohler number and constant density is considered. This simplified model is then used to study the distribution of fuel and oxidizer mass fractions, shape of the reaction sheet, and the temperature field. The temperature of the reaction sheet for the unity Lewis numbers is constant and is shown to be equal to the adiabatic flame temperature. The temperature of the reaction for the unequal Lewis number case is also shown to be constant and is equal to the stoichiometric flame temperature. In addition, we also show that the reaction sheet always takes the shape of the seperatrix, independent of fuel-oxidizers Lewis numbers and mixture strength.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2018-03-13 without embargo terms","The student, Naga Saras Chandan Vempati, accepted the attached license on 2017-12-14 at 14:24.","The student, Naga Saras Chandan Vempati, submitted this Thesis for approval on 2017-12-14 at 14:28.","This Thesis was approved for publication on 2017-12-14 at 15:59.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11922 on 2018-03-13 at 10:11:53","Made available in DSpace on 2018-03-13T15:49:09Z (GMT). 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