A numerical analysis of jet impingement cooling of a rotating disk



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Texas Tech University


The problem of jet impingement cooling of a rotating disk was investigated by numerical techniques. The integral approach was applied to the hydrodynamic and energy equations to obtain ordinary differential equations. These equations were solved numerically for the hydrodynamic and thermal boundary layer thicknesses. The thermal boundary layer thickness was used to calculate the average Nusselt number. The results were compared with experimental data to assess the validity of the method of solution. For the limiting case of a non-rotating disk this study predicted average Nusselt numbers that were good approximations of experimental results. For the case of a rotating disk the average Nusselt numbers predicted by this study were on the order of one half that of experimental results and followed the same trends as experimental results.



Numerical analysis, Rotating -- Thermal properties, Disks