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dc.contributor.advisorErdem, E. Yegan
dc.contributor.authorÖzkazanç, Gökçe
dc.date.accessioned2020-06-24T13:49:01Z
dc.date.available2020-06-24T13:49:01Z
dc.date.copyright2020-06
dc.date.issued2020-06
dc.date.submitted2020-06-24
dc.identifier.urihttp://hdl.handle.net/11693/53694
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (M.S.): Bilkent University, Department of Mechanical Engineering, İhsan Doğramacı Bilkent University, 2020.en_US
dc.descriptionIncludes bibliographical references (leaves 83-87).en_US
dc.description.abstractCavitation formation in low pressure regions of a flow is a chaotic distortion in fluid mechanics. Due to the complicated nature of multiphase flows, its modelling is expensive in terms of time and computational power. Opensource softwares such as OpenFOAM reduce license expenses and provide a developer friendly environment to simulate these types of complicated flows. In this thesis, by using OpenFoam software, several different geometries that cause cavitation are investigated. Presented results are compared with both literature and supported by experimental results. Experiments are carried out in microfluidic chips that are fabricated with soft lithography technique; fluorescent particles were introduced in the flow and cavity formation was observed under a fluorescent camera. Results showed that, OpenFOAM is well capable of predicting the cavitation formation in small scales. It was observed that increasing channel width reduces the pressure difference causing bubbles to form in higher input pressures. It was also seen that decreasing the channel width causes friction and viscous forces to dominate and reduce the velocity of fluid preventing the cavitation to form. Overall the modelling of cavity formation in microchannels with varying width and cross sectional profile were successfully accomplished and results were verified with experiments.en_US
dc.description.statementofresponsibilityby Gökçe Özkazançen_US
dc.format.extentx, 104 leaves : illustrations, charts (some color) ; 30 cm.en_US
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCavitationen_US
dc.subjectOpenFoamen_US
dc.subjectThrottleen_US
dc.subjectMultiphase flowen_US
dc.subjectInterPhaseChangeFoamen_US
dc.titleNumerical and experimental investigation of the effect of channel geometry on cavity formation in microfluidic channelsen_US
dc.title.alternativeMikro kanallarda kanal geometrisinin kavitasyon oluşumu üzerindeki etkisinin sayısal ve deneysel olarak incelenmesien_US
dc.typeThesisen_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.publisherBilkent Universityen_US
dc.description.degreeM.S.en_US
dc.identifier.itemidB160320
dc.embargo.release2020-12-05


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