Show simple item record

dc.contributor.advisorGopinath, Ashok
dc.contributor.authorHamilton, Leonard J.
dc.dateJune 2003
dc.date.accessioned2012-08-22T15:30:24Z
dc.date.available2012-08-22T15:30:24Z
dc.date.issued2003-06
dc.identifier.urihttp://hdl.handle.net/10945/9857
dc.description.abstractA three dimensional finite element based numerical model was used to analyze the heat transfer characteristics of various staggered short pin-fin array heat exchangers. The simulation was validated against data from an experimental rig as well as historical data and then used to estimate the heat transfer coefficient and pressure drop for a wide range of Reynolds numbers for circular and airfoil-shaped pin fins. Circular pin configuration variations included changes in pin spacing, axial pitch and pin height ratio. Airfoil pin variations also included changes in length and aspect ratio. Correlations for Nusselt number and friction factor were developed. Using established performance metrics, optimum configurations for both pin shapes were determined. The optimum airfoil pin array was shown to match the heat transfer rates obtained by the optimum circular pin configuration while incurring less than one third the specific fluid friction power loss. The results from this study would be of direct value in the design of a shroud enclosed heat exchanger concept being proposed for turbine blade cooling, or for cooling of high power electronic components, or in other high heat flux dissipation applications requiring a low-profile, high area-density based micro-heat exchanger design.en_US
dc.description.urihttp://archive.org/details/numericalndexper109459857
dc.format.extentxx, 165 p. : ill. (some col.)en_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.subject.lcshCoolingen_US
dc.titleNumerical and experimental analysis of the performance of staggered short pin-fin heat exchangersen_US
dc.contributor.departmentMechanical Engineering
dc.subject.authorNumerical Analysisen_US
dc.subject.authorHeat Transferen_US
dc.subject.authorPin-fin Heat Exchangeren_US
dc.subject.authorTurbine Blade Coolingen_US
dc.subject.authorElectronic Component Coolingen_US
dc.description.serviceCommander, United States Navyen_US
etd.thesisdegree.namePh.D. in Mechanical Engineeringen_US
etd.thesisdegree.levelDoctoralen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate School (U.S.)en_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record