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RISEffect of Blade Tip Geometry on Tip Flow and Heat Transfer for a Blade in a Low-Speed Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A comprehensive investigation of the effect of various tip sealing geometries is presented on the blade tip leakage flow and associated heat transfer of a scaled up HPT turbine blade in a ...
Influence of Crossflow-Induced Swirl and Impingement on Heat Transfer in a Two-Pass Channel Connected by Two Rows of Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Detailed heat transfer distributions are presented inside a two-pass coolant square channel connected by two rows of holes on the divider walls. The enhanced cooling is achieved by a combination ...
Effect of Jet Pulsation and Duty Cycle on Film Cooling From a Single Jet on a Leading Edge Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of jet pulsation and duty cycle on film effectiveness and heat transfer was investigated on a film hole located on the circular leading edge of a blunt body. A transient infrared ...
Effect of Tip and Pressure Side Coolant Injection on Heat Transfer Distributions for a Plane and Recessed Tip
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study investigates the effects of coolant injection on adiabatic film effectiveness and heat transfer coefficients from a plane and recessed tip of a high pressure turbine first ...
A Transient Infrared Thermography Method for Simultaneous Film Cooling Effectiveness and Heat Transfer Coefficient Measurements From a Single Test
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In film cooling situations, there is a need to determine both local adiabatic wall temperature and heat transfer coefficient to fully assess the local heat flux into the surface. Typical film ...
Film Cooling Measurements for Cratered Cylindrical Inclined Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Film cooling performance is studied for cylindrical holes embedded in craters. Different crater geometries are considered for a typical crater depth. Cratered holes may occur when blades are ...
Effect of Trench Width and Depth on Film Cooling From Cylindrical Holes Embedded in Trenches
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study is an experimental investigation of film cooling from cylindrical holes embedded in transverse trenches. Different trench depths are considered with two trench widths. Trench ...
Detailed Heat Transfer Measurements Inside Rotating Ribbed Channels Using the Transient Liquid Crystal Technique
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Coolant flow in rotating internal serpentine channels is highly complex due to the effects of the Coriolis force and centrifugal buoyancy. Detailed knowledge of the heat transfer over a surface ...
Effects of Rotation on Heat Transfer for a Single Row Jet Impingement Array With Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effects of the Coriolis force are investigated in rotating internal serpentine coolant channels in turbine blades. For complex flow in rotating channels, detailed measurements of the heat ...
Film Cooling From a Row of Holes Supplemented With Antivortex Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The primary focus of this paper is to study the film cooling performance for a row of cylindrical holes each supplemented with two symmetrical antivortex holes, which branch out from the main ...