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- W2036479040 abstract "The increased severity of the thermal environment of high pressure turbine blades and vanes requires accurate calculations for the successful design of these parts. In this paper, the prediction of the temperature field in the near-cooling-hole region on a film cooled turbine vane is presented. The surface distribution of the heat transfer coefficient and the film cooling effectiveness on the vane in presence of one or several film cooling injections is obtained from boundary layer calculations and via experimental correlations. Cooling jet coalescence is taken into account as well as the main parameters governing this physical phenomenon. The internal boundary conditions result from available correlations. The study was conducted on two different configurations : a flat plate including an injection through two rows of holes and a turbine vane including three injections through two rows of holes on the suction side. Thermal computations using a three-dimensional finite element code yield strong temperature distortions and high temperature gradients around the injection zones. The study also indicates that the three-dimensional temperature field just downstream of the injections becomes two-dimensional when jet coalescence takes place. The influence of one or several obstructed injection holes on the temperature field is studied; important effects are observed when the main flow temperature is high." @default.
- W2036479040 created "2016-06-24" @default.
- W2036479040 creator A5090560414 @default.
- W2036479040 date "1990-06-11" @default.
- W2036479040 modified "2023-09-25" @default.
- W2036479040 title "Numerical Investigation of the Three-Dimensional Temperature Field in the Near Hole Region of a Film Cooled Turbine Vane" @default.
- W2036479040 doi "https://doi.org/10.1115/90-gt-062" @default.
- W2036479040 hasPublicationYear "1990" @default.
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