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RISLocal Heat Transfer Dependency on Thermal Boundary Condition in Ribbed Cooling Channel Geometries
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study is geared toward quantifying the effects of imposed thermal boundary condition in cooling channel applications. In this regard, tests are conducted in a generic passage, with evenly distributed rib type ...
Film Cooling Extraction Effects on the Aero Thermal Characteristics of Rib Roughened Cooling Channel Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study is geared towards quantifying the effects of film cooling holes on turbine internal cooling passages. In this regard, tests are conducted in a generic stationary model, with evenly distributed ribtype ...
Two Dimensional Heat Transfer Distribution of a Rotating Ribbed Channel at Different Reynolds Numbers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The convective heat transfer distribution in a ribroughened rotating internal cooling channel was measured for different rotation and Reynolds numbers, representative of engine operating conditions. The test section consisted ...
Aerothermal Characterization of a Rotating Ribbed Channel at Engine Representative Conditions—Part II: Detailed Liquid Crystal Thermography Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present twopart work deals with a detailed characterization of the flow field and heat transfer distribution in a model of a rotating ribbed channel performed in a novel setup which allows test conditions at high ...
Aerothermal Characterization of a Rotating Ribbed Channel at Engine Representative Conditions—Part I: High Resolution Particle Image Velocimetry Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present work is part of a detailed aerothermal investigation in a model of a rotating internal cooling channel performed in a novel facility setup which allows test conditions at high rotation numbers (Ro). The test ...
Investigation of Thermal Effect on Bypass Transition on a High-Pressure Turbine Guide Vane
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The role of gas-to-wall temperature ratio on bypass transition along a highly loaded turbine guide vane is investigated through time-resolved heat flux measurements for different flow conditions. The tests are conducted ...
Optimization of a U Bend for Minimal Pressure Loss in Internal Cooling Channels—Part I: Numerical Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This twopart paper addresses the design of a Ubend for serpentine internal cooling channels optimized for minimal pressure loss. The total pressure loss for the flow in a Ubend is a critical design parameter, as it augments ...
Experimental Investigation of the Flow and Heat Transfer in a Helically Corrugated Cooling Channel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The detailed flow field and heat transfer were experimentally investigated in a channel with a circular cross section and equipped with a helical rib of low blockage ratio. Stereoscopic particle image velocimetry (S-PIV) ...
Optimization of a U Bend for Minimal Pressure Loss in Internal Cooling Channels—Part II: Experimental Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This twopart paper addresses the design of a Ubend for serpentine internal cooling channels optimized for minimal pressure loss. The total pressure loss for the flow in a Ubend is a critical design parameter, as it augments ...