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Heat Transfer and Effectiveness for a Turbulent Boundary Layer With Tangential Fluid Injection
108
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0
References
1960
Year
EngineeringFluid MechanicsTurbulenceTurbulent Boundary LayerTangential Fluid InjectionBoundary LayerConvective Heat TransferRefrigerationHeat Transfer ProcessNatural ConvectionHeat TransferMultiphase FlowFree-stream FluidsHeat-transfer CoefficientExperimental ResultsAerospace EngineeringHeat ExchangerHeat Transfer EnhancementTurbulent Flow Heat TransferAerodynamicsThermal Engineering
Experimental results are presented for the effectiveness and for the heat-transfer coefficient for a film cooling system in which air was used both for the film and for the free-stream fluids. Injection occurred at a single tangential slot near the leading edge of the plate and the slot size was varied. All flows were turbulent and the injection velocities covered a range from much less to much greater than the free-stream velocity. Correlations are realized for both the effectiveness and for the heat-transfer coefficient and, as in the past experience with such systems, separate specifications are needed for injection velocities greater and less than the free-stream velocity.