Experimental Study of Highly-Viscous Vertical Pipe Flow Using a Non-Intrusive Multi-View Measurement Technique

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dc.contributor.advisorHugo, Ronald J.
dc.contributor.authorSolis Meza, Miriam
dc.contributor.committeememberMohamad, Abdulmajeed
dc.contributor.committeememberNassar, Nashaat
dc.date2021-11
dc.date.accessioned2021-07-12T18:50:17Z
dc.date.available2021-07-12T18:50:17Z
dc.date.issued2021-06-30
dc.description.abstractIn this study, a non-intrusive multi-view measurement technique is used for tracking ascending air bubbles in a highly-viscous fluid (glycerin) and for tracking the injection of a lower-density mixture into a vertical flow of glycerin. Digital image processing was used to reduce light reflection due to back illumination in the multi-view measurement system. Combinations of convolution kernels and thresholding methods perform boundary detection, light reflection corrections and geometrical parameter measurements in the software ImageJ (Fiji). Receiver Operating Characteristics (ROC) plots based on a True Positive Rate (TPR) analysis are used to statistically quantify the effectiveness of the boundary detection and the light reflection reduction. The experimental scenarios in this study include: an opaque solid sphere ascending in a continuous highly-viscous liquid, air bubbles rising in a continuous highly-viscous liquid (glycerin), air bubbles rising in a stratified fluid with dense glycerin capped by a less dense 50%(w) water-glycerin mixture, and a colored 50%(w) water-glycerin mixture injected into a vertical flow of glycerin. The bubble volume calculation was performed using a “wedge” approximation. Bubble volume had errors as low as -0.3% compared to Ground Truth data. For the experiment of the injection of a colored 50%(w) water-glycerin mixture, light intensity analysis was examined as a method to determine parameters of injected liquid including position, length and segmentation which has the potential to be applied to the study of drag-reducing agent injection into a bulk flow.en_US
dc.identifier.citationSolis Meza, M. (2021). Experimental Study of Highly-Viscous Vertical Pipe Flow Using a Non-Intrusive Multi-View Measurement Technique (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/39001
dc.identifier.urihttp://hdl.handle.net/1880/113620
dc.language.isoengen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectvertical pipe flowen_US
dc.subjectbubble flowen_US
dc.subjectdigital image processingen_US
dc.subjectoptical tomographyen_US
dc.subject.classificationEngineeringen_US
dc.subject.classificationEngineering--Mechanicalen_US
dc.titleExperimental Study of Highly-Viscous Vertical Pipe Flow Using a Non-Intrusive Multi-View Measurement Techniqueen_US
dc.typemaster thesisen_US
thesis.degree.disciplineEngineering – Mechanical & Manufacturingen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrueen_US
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