Investigating Turbulent Convection in a Rectangular Enclosure Using Shear Stress Transport K-Ω Model

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dc.contributor.authorMuhoro, John Nyaga
dc.date.accessioned2021-03-03T13:15:23Z
dc.date.available2021-03-03T13:15:23Z
dc.date.issued2020
dc.descriptionA Project Submitted in Partial Fulfillment of the Requirements for the Award of Degree of Masters of Science in Applied Mathematics in the School of Pure and Applied Sciences Of Kenyatta Universityen_US
dc.description.abstractStudies have been done on the aspect ratio effect on natural convection turbulence using standard k-ε model but further studies showed that k-ω SST model performed better than both k-ε and k-ω model in the whole enclosure. Thus, there was need to do a numerical study on the natural convection fluid flow in a rectangular enclosure full of air using SST k-ω model. The left vertical wall of the enclosure was maintained at a steady high temperature Th of 323K while the right wall at a steady cool temperature Tc of 303K with the remaining walls adiabatic. Time-averaged energy, momentum and continuity equations with the two equation SST k-omega turbulence model were used to generate isotherms, streamlines and velocity magnitudes for different aspect ratios of the enclosure so as to be able to investigate effect of aspect ratio on turbulence. It was shown that as the aspect ratio of increased from 2, 4, 6 and 8 of the enclosure, the velocity of elements decreased and the vortices became smaller and more parallel thus concluded that an increase in aspect ratio decreased the turbulence.en_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/21738
dc.language.isoenen_US
dc.publisherKenyatta Universityen_US
dc.subjectTurbulent Convectionen_US
dc.subjectShear Stress Transport K-Ω Modelen_US
dc.titleInvestigating Turbulent Convection in a Rectangular Enclosure Using Shear Stress Transport K-Ω Modelen_US
dc.typeThesisen_US
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