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RISA Modern Review on Jet Impingement Heat Transfer Methods
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Jet impingement cooling is considered as one of the most effective heat transfer enhancement techniques. The primary mode of heat transfer enhancement is due to the flow stagnation. The effectiveness of jet impingement as ...
Detailed Heat Transfer Measurements of Jet Impingement on Dimpled Target Surface Under Rotation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study investigates the effects of Coriolis force and centrifugal buoyancy force on heat transfer due to jet impingement on dimpled target surface (DT). Detailed heat transfer measurements were carried out using ...
Multipass Serpentine Cooling Designs for Negating Coriolis Force Effect on Heat Transfer: 45-deg Angled Rib Turbulated Channels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rotation-induced Coriolis and centrifugal buoyancy forces result in significant modification of cooling characteristics of blade pressure and suction side internal walls. The nonuniformity in cooling, coupled with high-speed ...
Multi-Pass Serpentine Cooling Designs for Negating Coriolis Force Effect on Heat Transfer: Smooth Channels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The combined action of Coriolis and centrifugal buoyancy forces results in nonuniform heat transfer coefficient on pressure and suction side internal walls, hence leading to nonuniform metal temperatures and increased ...
Rib Turbulator Heat Transfer Enhancements at Very High Reynolds Numbers
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: High-pressure stage gas turbine blades feature serpentine passages where rib turbulators are installed to enhance heat transfer between the relatively colder air bled off from the compressor and the hot internal walls. ...
Three-Dimensional Transient Heat Conduction Equation Solution for Accurate Determination of Heat Transfer Coefficient
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accurate quantification of local heat transfer coefficient (HTC) is imperative for design and development of heat exchangers for high heat flux dissipation applications. Liquid crystal and infrared thermography (IRT) are ...
Effect of Pin Fins on Jet Impingement Heat Transfer Over a Rotating Disk
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Many engineering applications consist of rotating components that experience high-heat load. Applications like the gas turbine engine consist of rotating disks and the study of heat transfer over such rotating surfaces is ...
Experimental Analysis of Rib Turbulator Configurations for Thermal Hydraulic Performance Enhancement in Gas Turbine Cooling Channels Operating at Extremely High Reynolds Numbers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This study offers a comprehensive experimental analysis of the thermal–hydraulic performance of six rib configurations, including Broken 30-deg, 45-deg, and 60-deg ribs, as well as Continuous 30-deg, 45-deg, and ...
Enhanced Thermal–Hydraulic Performance in Gas Turbine Blade Internal Cooling Channels Using Non-Conventional Features at Ultra-High Reynolds Numbers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This study presents a detailed numerical and experimental investigation of the thermal–hydraulic performance of three innovative surface-feature configurations in a single-pass cooling channel: Continuous Chevron ...
Experimental And Numerical Evaluation of Oblique Angle and Secondary Channel Width on Heat Transfer and Pressure Drop of Oblique Microchannels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Increase in heat dissipation from micro-electronics has necessitated the development of enhanced microchannel geometries capable of providing high heat flux cooling while maintaining optimal device temperatures. ...