{"682957":{"#nid":"682957","#data":{"type":"event","title":"PhD Defense by Haripriya Rajagopalan","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EHaripriya Rajagopalan\u003C\/strong\u003E\u003Cbr\u003E\u003Cem\u003E(Advisor: Prof. Tim Lieuwen]\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003Ewill defend a doctoral thesis entitled,\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EPredicting Turbulent Burning Velocity of High \u003C\/strong\u003E\u003Cimg src=\u0022data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAjCAMAAAA+JdOiAAAAAXNSR0IArs4c6QAAAFFQTFRFAAAAAAAAAAA6AABmADqQAGa2OgAAOpDbZgAAZjo6ZpC2ZrbbZrb\/kDoAkGYAkLbbkNv\/tmYAtpCQtv\/\/25A62\/\/\/\/7Zm\/9uQ\/9u2\/\/+2\/\/\/bckaqeQAAAAF0Uk5TAEDm2GYAAAAJcEhZcwAAFiUAABYlAUlSJPAAAAAZdEVYdFNvZnR3YXJlAE1pY3Jvc29mdCBPZmZpY2V\/7TVxAAAA6UlEQVQ4T+1T2Q7CMAzrOMa4GYwd\/f8PJU4mpZGabkg8kqdKdlPbSUP4188T6CquSwgtHzYP74nIhDPB8Qbi3deCpnuGcUdO+QJ+ABSvosJ9nXDRNjUllYJvX2AOdVXt3n7Pnp4UXAXn2cBZJhuSk29IIi2GKTK1RHC+YENwFZxnApe0vzMkucfnEZpPJjGdS5J7S7FhHcxkbe6zoRYzIwPGn85FBYsh6mGY\/iLRzfT1EWnyLNE8hchA2pJhps4n7dIVlt\/k3a8lDrX\/nUzHqVlJJDcY1tgUvop0nj\/2slSe8NK2+tu5FvkAdNQJSt12HaQAAAAASUVORK5CYII=\u0022 width=\u002227\u0022 height=\u002223\u0022\u003E\u003Cstrong\u003EFlames\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EWednesday, July 9 at 1 p.m.\u0026nbsp;\u003C\/strong\u003E\u003Cbr\u003E\u003Cstrong\u003E\u0026nbsp;Food Processing Technology Building, Auditorium 102\u003C\/strong\u003E\u003Cbr\u003E\u003Cem\u003ENorth Avenue Research Area, 640 Strong St NW\u0026nbsp;\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003Cbr\u003EHydrogen (H2) is increasingly being explored as an energy carrier to support a decarbonized energy economy.\u0026nbsp;Both the direct utilization of H2\u0026nbsp;and its blending with conventional fuels such as natural gas are under active consideration to meet the stringent emissions regulations faced by the energy sector.\u0026nbsp;Among the combustion parameters affected by H2, the turbulent burning velocity (\u003Cem\u003ES\u003C\/em\u003ET) plays a central role in determining combustor operability\u0026nbsp;limits,\u0026nbsp;in\ufb02uencing\u0026nbsp;blowoff,\u0026nbsp;\ufb02ashback,\u0026nbsp;and\u0026nbsp;combustion\u0026nbsp;instabilities. The\u0026nbsp;impact of H2 on \u003Cem\u003ES\u003C\/em\u003ET becomes particularly complex under lean conditions and at high pressures, where\u0026nbsp;traditional\u0026nbsp;scaling\u0026nbsp;models\u0026nbsp;for\u0026nbsp;\u003Cem\u003ES\u003C\/em\u003ET,\u0026nbsp;based\u0026nbsp;largely\u0026nbsp;on\u0026nbsp;root-mean-square\u0026nbsp;turbulent\u0026nbsp;velocity\u0026nbsp;\ufb02uctuations\u0026nbsp;(\u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002232\u0022 height=\u002219\u0022\u003E)\u0026nbsp;and\u0026nbsp;the\u0026nbsp;unstretched\u0026nbsp;laminar\u0026nbsp;\ufb02ame\u0026nbsp;speed\u0026nbsp;(\u003Cem\u003ES\u003C\/em\u003EL,0),\u0026nbsp;are\u0026nbsp;inadequate.\u003C\/p\u003E\u003Cp\u003EThis\u0026nbsp;dissertation\u0026nbsp;focuses\u0026nbsp;on\u0026nbsp;the\u0026nbsp;co-development\u0026nbsp;of\u0026nbsp;data-driven\u0026nbsp;and\u0026nbsp;physics-based\u0026nbsp;modeling\u0026nbsp;frameworks\u0026nbsp;to\u0026nbsp;predict\u0026nbsp;\u003Cem\u003ES\u003C\/em\u003ET in\u0026nbsp;H2-fueled\u0026nbsp;premixed\u0026nbsp;\ufb02ames\u0026nbsp;based\u0026nbsp;on\u0026nbsp;leading-point\u0026nbsp;concepts. A\u0026nbsp;physics-based\u0026nbsp;correlation\u0026nbsp;is\u0026nbsp;developed\u0026nbsp;for\u0026nbsp;the\u0026nbsp;turbulent\u0026nbsp;global\u0026nbsp;consumption\u0026nbsp;speed \u003Cem\u003ES\u003C\/em\u003ET,GC, rooted in Damko\u00a8hler\u2019s paradigm, of the form:\u003C\/p\u003E\u003Cp\u003E\u003Cimg 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width=\u0022343\u0022 height=\u002244\u0022\u003E\u003C\/p\u003E\u003Cp\u003Ewhere, \u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002229\u0022 height=\u002221\u0022\u003E\u003Cem\u003E \u003C\/em\u003Eand\u0026nbsp;\u003Cem\u003ES\u003C\/em\u003EL,ref\u0026nbsp;are\u0026nbsp;generalized\u0026nbsp;forms\u0026nbsp;of\u0026nbsp;the\u0026nbsp;conventionally\u0026nbsp;used\u0026nbsp;root-mean-square turbulent\u0026nbsp;velocity\u0026nbsp;\ufb02uctuation\u0026nbsp;(\u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002232\u0022 height=\u002219\u0022\u003E)\u0026nbsp;and\u0026nbsp;the\u0026nbsp;laminar\u0026nbsp;unstretched\u0026nbsp;\ufb02ame\u0026nbsp;speed\u0026nbsp;(\u003Cem\u003ES\u003C\/em\u003EL,0),\u0026nbsp;respectively.\u0026nbsp;Unlike traditional de\ufb01nitions, in this study, these parameters are determined based on leading-point scaling and data-driven \ufb01tting of large experimental databases.\u0026nbsp;\u003Cem\u003ES\u003C\/em\u003ET,GC measurements were acquired at a high-pressure Bunsen burner facility across different\u0026nbsp;H2\u0026nbsp;fuel\u0026nbsp;blends\u2014(H2\u003Cem\u003E\/\u003C\/em\u003ECO,\u0026nbsp;H2\u003Cem\u003E\/\u003C\/em\u003ECH4,\u0026nbsp;H2\u003Cem\u003E\/\u003C\/em\u003ECO\u003Cem\u003E\/\u003C\/em\u003ECH4\u003Cem\u003E\/\u003C\/em\u003EN2)\u2014operated\u0026nbsp;at\u0026nbsp;gas\u0026nbsp;turbine\u2013relevant pressures (1\u201320 bar) and preheat temperatures (300\u2013450 K). The global turbulent consumption\u0026nbsp;speed\u0026nbsp;(\u003Cem\u003ES\u003C\/em\u003ET,GC), representing\u0026nbsp;the\u0026nbsp;average\u0026nbsp;conversion\u0026nbsp;rate\u0026nbsp;of\u0026nbsp;premixed\u0026nbsp;reactants\u0026nbsp;to combustion\u0026nbsp;products,\u0026nbsp;is\u0026nbsp;measured\u0026nbsp;at\u0026nbsp;the\u0026nbsp;facility\u0026nbsp;using\u0026nbsp;OH*\u0026nbsp;chemiluminescence,\u0026nbsp;while\u0026nbsp;the \ufb02ow\u0026nbsp;\ufb01eld\u0026nbsp;turbulence\u0026nbsp;characteristics\u0026nbsp;are\u0026nbsp;quanti\ufb01ed\u0026nbsp;using\u0026nbsp;laser\u0026nbsp;Doppler\u0026nbsp;velocimetry\u0026nbsp;(LDV). The primary focus of this work is on the \u003Cem\u003ES\u003C\/em\u003ET\u003Cem\u003E,\u003C\/em\u003EGC\u0026nbsp;measurements of H2\u003Cem\u003E\/\u003C\/em\u003ECH4\u0026nbsp;fuel blends.\u003C\/p\u003E\u003Cp\u003EThe \u003Cem\u003ES\u003C\/em\u003ET correlation is derived by \ufb01rst applying feature selection techniques to identify the most relevant non-dimensional parameters governing \u003Cem\u003ES\u003C\/em\u003ET,GC, based on their predictive\u0026nbsp;importance\u0026nbsp;across\u0026nbsp;the\u0026nbsp;dataset.\u0026nbsp;This\u0026nbsp;analysis\u0026nbsp;reveals\u0026nbsp;that\u0026nbsp;a\u0026nbsp;small\u0026nbsp;subset\u0026nbsp;of\u0026nbsp;features - namely,\u0026nbsp;the\u0026nbsp;turbulence\u0026nbsp;intensity \u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002232\u0022 height=\u002219\u0022\u003E\u003Cem\u003E\/S\u003C\/em\u003EL,max,\u0026nbsp;normalized\u0026nbsp;bulk\u0026nbsp;\ufb02ow\u0026nbsp;Reynolds\u0026nbsp;number\u0026nbsp;(\u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002227\u0022 height=\u002220\u0022\u003E),\u0026nbsp;and\u0026nbsp;a\u0026nbsp;time\u0026nbsp;scale\u0026nbsp;ratio\u0026nbsp;associated\u0026nbsp;with\u0026nbsp;the\u0026nbsp;\ufb02ame\u0026nbsp;leading\u0026nbsp;edge\u0026nbsp;(\u003Cem\u003EKa\u003C\/em\u003Emax\u0026nbsp;=\u0026nbsp;\u003Cem\u003E\u03c4S\u003C\/em\u003EL\u003Cem\u003E,\u003C\/em\u003Emax\u0026nbsp;\u003Cem\u003E\/\u03c4\u003C\/em\u003E\ufb02ow)\u0026nbsp;- captures\u0026nbsp;most\u0026nbsp;of\u0026nbsp;the\u0026nbsp;observed\u0026nbsp;variance\u0026nbsp;in\u0026nbsp;\u003Cem\u003ES\u003C\/em\u003ET,GC. This\u0026nbsp;is\u0026nbsp;followed\u0026nbsp;by\u0026nbsp;symbolic\u0026nbsp;regression, which\u0026nbsp;produced\u0026nbsp;an\u0026nbsp;interpretable\u0026nbsp;functional\u0026nbsp;form\u0026nbsp;capturing\u0026nbsp;the\u0026nbsp;nonlinear\u0026nbsp;relationship\u0026nbsp;between\u0026nbsp;the\u0026nbsp;selected\u0026nbsp;features\u0026nbsp;and\u0026nbsp;\u003Cem\u003ES\u003C\/em\u003ET,GC.\u0026nbsp;We\u0026nbsp;observe\u0026nbsp;that\u0026nbsp;the\u0026nbsp;optimal \u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002233\u0022 height=\u002221\u0022\u003Escales\u0026nbsp;as:\u003C\/p\u003E\u003Cp\u003E\u003Cimg src=\u0022data:image\/png;base64,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width=\u0022397\u0022 height=\u002239\u0022\u003E\u003C\/p\u003E\u003Cp\u003EUnlike\u0026nbsp;conventional\u0026nbsp;Reynolds\u0026nbsp;number\u0026nbsp;considerations\u0026nbsp;in\u0026nbsp;\u003Cem\u003ES\u003C\/em\u003ET,GC\u0026nbsp;correlations,\u0026nbsp;we\u0026nbsp;hypothesize\u0026nbsp;that\u0026nbsp;this\u0026nbsp;scaling\u0026nbsp;highlights\u0026nbsp;the\u0026nbsp;in\ufb02uence\u0026nbsp;of\u0026nbsp;intermittent, extreme\u0026nbsp;velocity\u0026nbsp;\ufb02uctuation events, which occur in the tails of the velocity distribution and become more pronounced with increasing \u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002227\u0022 height=\u002220\u0022\u003E.\u0026nbsp;These extreme events are hypothesized to represent \ufb02ow velocity \ufb02uctuations\u0026nbsp;interacting\u0026nbsp;with\u0026nbsp;the\u0026nbsp;turbulent\u0026nbsp;\ufb02ame\u0026nbsp;front\u0026nbsp;at\u0026nbsp;the\u0026nbsp;leading\u0026nbsp;points. Some\u0026nbsp;evidence for the in\ufb02uence of \u003Cimg src=\u0022data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAeCAMAAABpA6zvAAAAAXNSR0IArs4c6QAAAJxQTFRFAAAAAAAAAAA6AABmADo6ADpmADqQAGa2OgAAOjoAOjo6OjpmOmaQOma2OpDbZgAAZjoAZjo6ZmaQZpC2ZpDbZrbbZrb\/kDoAkDo6kGY6kGZmkJC2kLbbkLb\/kNv\/tmYAtmY6tpA6tpBmttvbttv\/tv\/\/25A625Bm27Zm27aQ27a229u229vb2\/\/\/\/7Zm\/9uQ\/9u2\/9vb\/\/+2\/\/\/bv26eQwAAAAF0Uk5TAEDm2GYAAAAJcEhZcwAAFiUAABYlAUlSJPAAAAAZdEVYdFNvZnR3YXJlAE1pY3Jvc29mdCBPZmZpY2V\/7TVxAAABO0lEQVQ4T9VTy0KDMBBkEWy0KFatFa2iVZH4CEj+\/9\/cF8VChZMH98AjO8zOTEgQ\/K+qsyMAiJL1VrZ\/WA4t1FnyhKv+7cZAfPtBj3axB+evu8WvzcIg93z9+deROBxDNe9c\/DKyhIOXILAGriY0OTgk2XobARcwo25liHiscpk5CfSr8J6ASoxJb3CL4ucBtzLVqeCRGUGlyNkpR2vemrjFkbXKsMGdyjnFcCkNFVLAaR\/nV+iFLzp4Fvj3DJIBYZNSKtsQC6I\/Pmcr\/AzhpVAIpGmtaFbSy5HDP+owUdPObrNSveKL5baIXNUr4yvNa1LKyAljaYA1OP4zNJc647wrgxBrTqSPRdSVgeiOVuwZHhzJis2Ee86DOOhKvOiG9Zs\/3kWiehnBKcQN96j\/UUFD7eRfKj4humBf369YGhTP+r\/IAAAAAElFTkSuQmCC\u0022 width=\u002227\u0022 height=\u002220\u0022\u003E\u003Cem\u003E \u003C\/em\u003Eon the tail events of turbulent velocity distributions is provided through \ufb02ow characterization using LDV studies.\u003C\/p\u003E\u003Cp\u003EMeanwhile, the data clearly indicates that \u003Cem\u003ES\u003C\/em\u003EL\u003Cem\u003E,\u003C\/em\u003Eref closely corresponds to the maximum laminar burning velocity, \u003Cem\u003ES\u003C\/em\u003EL\u003Cem\u003E,\u003C\/em\u003Emax, of critically stretched \ufb02ames, with only a weak dependence\u0026nbsp;on\u0026nbsp;the\u0026nbsp;Karlovitz\u0026nbsp;number\u0026nbsp;(\u003Cem\u003EKa\u003C\/em\u003Emax).\u0026nbsp;These\u0026nbsp;\ufb01ndings\u0026nbsp;provide\u0026nbsp;useful\u0026nbsp;insights\u0026nbsp;into\u0026nbsp;datasets\u0026nbsp;showing\u0026nbsp;the\u0026nbsp;important\u0026nbsp;effects\u0026nbsp;of\u0026nbsp;hydrogen\u0026nbsp;composition\u0026nbsp;and\u0026nbsp;pressure\u0026nbsp;on\u0026nbsp;the\u0026nbsp;turbulent\u0026nbsp;\ufb02ame speed, as well as the underlying \ufb02uid mechanic and chemical kinetic roots of these dependencies.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E.\u0026nbsp; \u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EProf. Tim Lieuwen \u2013 School of Aerospace Engineering (advisor)\u003C\/li\u003E\u003Cli\u003EProf. Adam Steinberg\u2013 School of Aerospace Engineering\u003C\/li\u003E\u003Cli\u003EProf. P.K. Yeung \u2013 School of Aerospace Engineering\u003C\/li\u003E\u003Cli\u003EDr. Jackie Chen \u2013 Senior Scientist, Sandia National Labs\u003C\/li\u003E\u003Cli\u003EDr Debolina Dasgupta \u2013 Research Scientist, Argonne National Lab\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EPredicting Turbulent Burning Velocity of High \u003C\/strong\u003E\u003Cimg src=\u0022data:image\/png;base64,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\u0022 width=\u002227\u0022 height=\u002223\u0022\u003E\u003Cstrong\u003EFlames\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Predicting Turbulent Burning Velocity of High Flames"}],"uid":"27707","created_gmt":"2025-06-30 19:28:04","changed_gmt":"2025-06-30 19:29:06","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2025-07-09T13:00:00-04:00","event_time_end":"2025-07-09T15:00:00-04:00","event_time_end_last":"2025-07-09T15:00:00-04:00","gmt_time_start":"2025-07-09 17:00:00","gmt_time_end":"2025-07-09 19:00:00","gmt_time_end_last":"2025-07-09 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":" Food Processing Technology Building, Auditorium 102","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}