Effect of Slot Jet Flow on Non-Axisymmetric Endwall Cooling Performance of High-Load Turbines
نویسندگان
چکیده
As vane inlet temperatures and turbine loadings are increasing, the aerodynamic thermal management for endwalls of gas turbines have received increased attention. Non-axisymmetric becoming popular due to their proficient capabilities modify secondary flow fields change film cooling performance on endwalls. In this study, by considering interaction between mainstream purge based non-axisymmetric endwall contouring, numerical research model used in present was established. Based validated method, influence contouring film-cooling effectiveness characteristics studied. Furthermore, effect different inclination angles contoured also investigated. The results indicate that high-load research, various types can alter aero-dynamic simultaneously. By inhibiting flows, reduce total cascade pressure loss coefficient 0.305%. addition, significantly enhance effective coverage area up 28.29%, near suction side achieve better performance. Finally, improve protective large-angle flow.
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ژورنال
عنوان ژورنال: Machines
سال: 2023
ISSN: ['2075-1702']
DOI: https://doi.org/10.3390/machines11020134