Optimization and Automated Parameter Study for Cavitating Multiphase Flows in Venturi - CFD Analysis

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dc.contributor.authorFrenander, Kristian Bartholdsson
dc.contributor.departmentChalmers tekniska högskola / Institutionen för tillämpad mekaniksv
dc.contributor.departmentChalmers University of Technology / Department of Applied Mechanicsen
dc.date.accessioned2019-07-03T13:34:56Z
dc.date.available2019-07-03T13:34:56Z
dc.date.issued2014
dc.description.abstractIn recent years falling demand for print paper and ambitious targets for reduction of energy use have been major factors that has caused the pulp and paper industry to develop state of the art technologies for reducing energy consumption drastically. A method for achieving the same is to develop and design energy efficient refiners by utilizing hydrodynamic cavitation technology. A parameter study of a venturi design with a flow obstruction body is conducted in order to investigate the critical parameters for inducing hydrodynamic cavitation. To reduce computational time and thereby the costs, a second-level optimization algorithm using a Neural Network for a fixed set of samples is applied and investigated. To create a real-life application for the design of venturi, outlet pressure, obstruction size and its position are found to be critical for maximizing cavitational zone in the centre axis of the flow field. This research work does not consider fibres in the flow through the venturi. The project has been conducted at AF Industry AB and is financed by Energimyndigheten, Stora Enso, Holmen, SCA and AF Industry AB
dc.identifier.urihttps://hdl.handle.net/20.500.12380/207988
dc.language.isoeng
dc.relation.ispartofseriesDiploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden : 2014:61
dc.setspec.uppsokTechnology
dc.subjectStrömningsmekanik och akustik
dc.subjectHållbar utveckling
dc.subjectEnergi
dc.subjectFluid Mechanics and Acoustics
dc.subjectSustainable Development
dc.subjectEnergy
dc.titleOptimization and Automated Parameter Study for Cavitating Multiphase Flows in Venturi - CFD Analysis
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
local.programmeSustainable energy systems (MPSES), MSc
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