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RISAn Experimental Study of Sister Holes Film Cooling With Various Secondary-to-Primary Hole Diameter Ratios
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For increased specific thrust and efficiency, more effective film-cooling schemes are developed with each successive gas turbine design. Adding secondary film-cooling holes to each primary film-cooling hole represents such ...
Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flowrates—Part 2: Endwall and Vicinity Surface Effectiveness Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effective coolant schemes are required for providing cooling to the first-stage stator vanes of gas turbines. To correctly predict coolant performance on the endwall and vane surfaces, these coolant schemes should also ...
Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flowrates—Part 1: Flowfield Velocity and Coolant Concentration Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The stators of the first stage of a gas turbine are exposed to severe temperatures. The coolant streams introduced to prevent the stators from thermal damage further complicate the highly three-dimensional vane passage ...