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Influence of Gap Leakage Downstream of the Injection Holes on Film Cooling Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study investigated a practical but never exploited issue concerning the influence of flow leakage through a gap downstream on the film cooling performance with discrete-hole injection. A ...
Darryl E. Metzger Memorial Session Paper: Surface Heat Transfer From a Three-Pass Blade Cooling Passage Simulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Using an analogous mass transfer system based on naphthalene sublimation, the present research focuses on investigating the local heat transfer characteristics from three-pass smooth and turbulated ...
Heat Transfer in the Tip Region of Grooved Turbine Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Local convective heat transfer at the tip region of grooved blades is experimentally investigated. The present study models the problem by flow over a shrouded, rectangular cavity, with the ...
Thermal-Mechanical Life Prediction System for Anisotropic Turbine Components
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern gas turbine engines provide large amounts of thrust and withstand severe thermal-mechanical conditions during the load and mission operations characterized by cyclic transients and long ...
To Achieve the Best Performance Through Optimization of Gas Delivery and Current Collection in Solid Oxide Fuel Cells
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aimed at improving the maximum available power density in a planar-type solid oxide fuel cell, an analytical model is proposed in this work to find the optimum size of a current collector ...
Convective Heat Transfer of Cubic Fin Arrays in a Narrow Channel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study explores the heat transfer enhancement induced by arrays of cubic fins. The fin element is either a cube or a diamond in shape. The array configurations studied include both ...
Analysis of Airfoil Trailing Edge Heat Transfer and Its Significance in Thermal-Mechanical Design and Durability
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The trailing edge section of modern high-pressure turbine airfoils is an area that requires a high degree of attention from turbine performance and durability standpoints. Aerodynamic loss near ...
Heat Transfer on Internal Surfaces of a Duct Subjected to Impingement of a Jet Array with Varying Jet Hole-Size and Spacing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One significant issue concerning the impingement heat transfer with a jet array is related to the so-called “crossflow,” where a local jet performance is influenced by the convection of the ...
Heat Transfer Contributions of Pins and Endwall in Pin-Fin Arrays: Effects of Thermal Boundary Condition Modeling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Short pin-fin arrays are often used for cooling turbine airfoils, particularly near the trailing edge. An accurate heat transfer estimation from a pin-fin array should account for the total ...