{"597195":{"#nid":"597195","#data":{"type":"event","title":"PhD Defense by Hamid Karani","body":[{"value":"\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ECOLLEGE OF SCIENCES\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ESCHOOL OF EARTH AND ATMOSPHERIC SCIENCES\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EEAS Ph.D. Defense\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EHamid Karani\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EOctober 27, 2017\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003E10:00 AM\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EEarth and Atmospheric Sciences\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFord Environmental Science \u0026amp; Technology (ES\u0026amp;T)311 Ferst Drive, ES\u0026amp;TAtlanta, GA 30332-0340Web: eas.gatech.edu\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EES\u0026amp;T\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003E1177\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ETitle: \u003C\/strong\u003EA Multiscale Analysis of Heat Transfer in Porous Media\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECommittee members: \u003C\/strong\u003EDr. Huber, Dr. Dufek, Dr. Simon,Dr. Ferrier, Dr.Magin(External committee member from U. Illinois at Chicago)\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract: \u003C\/strong\u003EThe modeling of thermal convection in porous media is a challenging task due to the inherent structural and thermophysicalheterogeneities that permeate over several scales. In the present thesis, we address several issues relevant to buoyancy\u003C\/p\u003E\r\n\r\n\u003Cp\u003Edriven thermal convection in porous media. Our approach is based on establishing\u003C\/p\u003E\r\n\r\n\u003Cp\u003Ea multi-scale framework build on knowledge accrued by theoretical, numerical and\u003C\/p\u003E\r\n\r\n\u003Cp\u003Eexperimental methods.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EIn Chapter 2, we develop a pore-scale computational tool based on a lattice Boltzmann(LB) model. This computational tool enables us to tackle thermal convection\u003C\/p\u003E\r\n\r\n\u003Cp\u003Efrom a pore-scale perspective and to provide benchmarks for the development of an\u003C\/p\u003E\r\n\r\n\u003Cp\u003Eappropriate continuum-scale models. In Chapter 3, we use our LB model and conduct\u003C\/p\u003E\r\n\r\n\u003Cp\u003Ehigh-resolution direct numerical simulation at the pore scale. The objective is to evaluate the underlying assumptions of upscaledthermal models and to assess the role of\u003C\/p\u003E\r\n\r\n\u003Cp\u003Ethermophysicalheterogenetieson heat transfer. We bene\ufb01t from the insights gained\u003C\/p\u003E\r\n\r\n\u003Cp\u003Efrom our pore-scale results and propose a new upscaledenergy model for thermal\u003C\/p\u003E\r\n\r\n\u003Cp\u003Econvection in Chapter 4. The proposed model is based on a fractional-order advectiveterm, which models the in\ufb02uence of thermal heterogeneities in a \ufb02exible and\u003C\/p\u003E\r\n\r\n\u003Cp\u003Econsistent way. In Chapter 5, we used a combination of theoretical and experimental\u003C\/p\u003E\r\n\r\n\u003Cp\u003Eapproaches to calculate a new metric, basin stability, for quantifying the respective\u003C\/p\u003E\r\n\r\n\u003Cp\u003Erelative stability of coexisting convection modes in porous media. We show that transition between convective modes predicted by the basin stability analysis agrees well\u003C\/p\u003E\r\n\r\n\u003Cp\u003Ewith the experiments from our IR thermography visualization setup.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"A Multiscale Analysis of Heat Transfer in Porous Media"}],"uid":"27707","created_gmt":"2017-10-11 14:43:50","changed_gmt":"2017-10-11 14:43:50","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2017-10-27T11:00:00-04:00","event_time_end":"2017-10-27T13:00:00-04:00","event_time_end_last":"2017-10-27T13:00:00-04:00","gmt_time_start":"2017-10-27 15:00:00","gmt_time_end":"2017-10-27 17:00:00","gmt_time_end_last":"2017-10-27 17:00:00","rrule":null,"timezone":"America\/New_York"},"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":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}