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Full-Text Articles in Engineering
Multi-Row Film Cooling Boundary Layers, Greg Natsui
Multi-Row Film Cooling Boundary Layers, Greg Natsui
Electronic Theses and Dissertations
High fidelity measurements are necessary to validate existing and future turbulence models for the purpose of producing the next generation of more efficient gas turbines. The objective of the present study is to conduct several different measurements of multi-row film cooling arrays in order to better understand the physics involved with injection of coolant through multiple rows of discrete holes into a flat plate turbulent boundary layer. Adiabatic effectiveness distributions are measured for several multi-row film cooling geometries. The geometries are designed with two different hole spacings and two different hole types to yield four total geometries. One of the …
A Full Coverage Film Cooling Study: The Effect Of An Alternating Compound Angle, Justin Hodges
A Full Coverage Film Cooling Study: The Effect Of An Alternating Compound Angle, Justin Hodges
Electronic Theses and Dissertations
This thesis is an experimental and numerical full-coverage film cooling study. The objective of this work is the quantification of local heat transfer augmentation and adiabatic film cooling effectiveness for two full-coverage film cooling geometries. Experimental data was acquired with a scientific grade CCD camera, where images are taken over the heat transfer surface, which is painted with a temperature sensitive paint. The CFD component of this study served to evaluate how well the v2-f turbulence model predicted film cooling effectiveness throughout the array, as compared with experimental data. The two staggered arrays tested are different from one another through …