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dc.contributor.advisorIssa, Johnnyen_US
dc.contributor.authorSaliba, Antonellaen_US
dc.descriptionIncludes bibliographical references (p. 71-72).en_US
dc.description.abstractAnnular impinging jets are commonly used in heating and cooling applications such as heat exchangers and water-cooled combustor. A numerical study of heat transfer in a laminar confined annular jet is investigated. The working fluids are air and water, with Prandtl numbers equal to 0.731 and 7.01 respectively. Two types of velocity profiles are used at the jet axis, uniform and parabolic, with Reynolds number ranging between 100 and 500 with an increment of 100. The considered nozzle to plate dimensionless distances are 3, 5 and 7. Seven cases aspect ratios varying between 0.5 and 10 are also studied. The numerical simulations showed that the maximum local Nusselt number is enhanced at large Reynolds number. As the nozzle to plate dimensionless distance and the aspect ratio decrease, the local maximum Nusselt number improves. The results show that, for Re=500, the maximum local Nusselt number for the case corresponding to a parabolic velocity profile is approximately 24% larger than the one for a uniform velocity profile at H/w=3 and Di/w=0.5. As H/w increases, the maxima corresponding to the two velocity profiles get closer to each other to each other. The minor secondary peaks are not influenced by the types of velocity profiles.en_US
dc.description.statementofresponsibilityby Antonella Salibaen_US
dc.format.extentxi, 74 p. : ill.en_US
dc.rightsThis object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the personal and educational use exceptions must be obtained from the copyright holderen_US
dc.subject.lcshDissertations, Academicen_US
dc.subject.lcshUniversity of Balamand--Dissertationsen_US
dc.titleA numerical investigation of the heat transfer in an annular jet impinging on an isothermal surfaceen_US
dc.contributor.corporateUniversity of Balamanden_US
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.contributor.facultyFaculty of Engineeringen_US
dc.contributor.institutionUniversity of Balamanden_US
dc.description.degreeMS in Mechanical Engineeringen_US
dc.relation.ispartofbookseriesUniversity of Balamand. Thesisen_US
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