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RISHeat Transfer and Film Cooling Effectiveness in a Linear Airfoil Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A warm (315°C) wind tunnel test facility equipped with a linear cascade of film cooled vane airfoils was used in the simultaneous determination of the local gas side heat transfer ...
Influence of Surface Heat Flux Ratio on Heat Transfer Augmentation in Square Channels With Parallel, Crossed, and V-Shaped Angled Ribs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of wall heat flux ratio on the local heat transfer augmentation in a square channel with two opposite in-line ribbed walls was investigated for Reynolds numbers from 15,000 to ...
Rotation Effect on Jet Impingement Heat Transfer in Smooth Rectangular Channels With Four Heated Walls and Radially Outward Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of channel rotation on jet impingement cooling by arrays of circular jets in two channels was studied. Jet flow direction was in the direction of rotation in one channel and ...
Local Heat Transfer in a Rotating Two-Pass Triangular Duct With Smooth Walls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Earlier heat transfer studies with orthogonal rotation were conducted mostly on ducts of square cross section. This paper reports a different cross section, a triangular duct. Unlike a square ...
Effects of Surface Roughness on Heat Transfer and Aerodynamic Performance of Turbine Airfoils
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aerodynamic flow path losses and turbine airfoil gas side heat transfer are strongly affected by the gas side surface finish. For high aero efficiencies and reduced cooling requirements, airfoil ...
Influence of Surface Heating Condition on Local Heat Transfer in a Rotating Square Channel With Smooth Walls and Radial Outward Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of a surface heating condition on the local heat transfer coefficient in a rotating square channel with smooth walls and radial outward flow was investigated for Reynolds numbers ...
Analysis of Some Improved Blade Tip Concepts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Over tip leakage in high-pressure turbines contributes to aerodynamic losses and migration of hot gasses towards the tip resulting in increased thermal distress. Consequently, turbine designers ...
Combined Effect of Grid Turbulence and Unsteady Wake on Film Effectiveness and Heat Transfer Coefficient of a Gas Turbine Blade With Air and CO2 Film Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experiments were performed to study the combined effect of grid turbulence and unsteady wake on film effectiveness and heat transfer coefficient of a turbine blade model. Tests were done on a ...
Unsteady Wake Over a Linear Turbine Blade Cascade With Air and CO2 Film Injection: Part I—Effect on Heat Transfer Coefficients
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of unsteady wake flow and air (D.R. = 1.0) or CO2 (D.R. = 1.52) film injection on blade heat transfer coefficients was experimentally determined. A spoked wheel-type wake generator ...
Unsteady Wake Over a Linear Turbine Blade Cascade With Air and CO2 Film Injection: Part II—Effect on Film Effectiveness and Heat Transfer Distributions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of unsteady wake flow and air (D.R. = 0.97) or CO2 (D.R. = 1.48) film injection on blade film effectiveness and heat transfer distributions was experimentally determined. A spoked ...