In the current study, a numerical analysis was performed for the heat transfer over the surface of nozzle guide vanes (NGVs) using three-dimensional computational fluid dynamics (CFD) models. The investigation has taken place in two stages: the baseline nonfilm-cooled NGV and the film-cooled NGV. A finite volume based commercial code was used to build and analyze the CFD models. The investigated annular cascade has no heat transfer measurements available; hence in order to validate the CFD models against experimental data, two standalone studies were carried out on the NASA C3X vanes, one on the nonfilm-cooled C3X vane and the other on the film-cooled C3X vane. Different modeling parameters were investigated including turbulence models in order to obtain good agreement with the C3X experimental data; the same parameters were used afterward to model the industrial NGVs.
Heat Transfer Analysis of the Surface of a Nozzle Guide Vane in a Transonic Annular Cascade
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received July 23, 2017; final manuscript received July 17, 2018; published online October 24, 2018. Assoc. Editor: Ting Wang.
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Ragab, K. E., and El-Gabry, L. (October 24, 2018). "Heat Transfer Analysis of the Surface of a Nozzle Guide Vane in a Transonic Annular Cascade." ASME. J. Thermal Sci. Eng. Appl. February 2019; 11(1): 011019. https://doi.org/10.1115/1.4041266
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