#6589. Experimental Study on Flow Behavior and Heat Transfer Enhancement with Distinct Dimpled Gas Turbine Blade Internal Cooling Channel

January 2027publication date
Proposal available till 05-06-2025
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Journal’s subject area:
Energy (all);
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Abstract:
The study presents the investigation on heat transfer distribution along a gas turbine blade internal cooling channel. Six different cases were considered in this study, using the smooth surface channel as a baseline. Three different dimples depth-to-diameter ratios with 0.1, 0.25, and 0.50 were considered. Different combinations of partial spherical and leaf dimples were also studied with the Reynolds numbers of 6,000, 20,000, 30,000, 40,000, and 50,000. In addition to the experimental investigation, the numerical study was conducted using a large eddy simulation (LES) to validate the data.
Keywords:
alternative energy sources; dimpled cooling channel; energy conversion/systems; gas turbine blade; heat transfer augmentation; internal cooling; large eddy simulation; power (co-) generation; thermal performance

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