.... In the present study, two array impingement cooling structures with cross-flow are presented, and the heat transfer characteristics are obtained experimentally. The heat transfer performance of the impingement cooling structures are studied by using the transient liquid crystal thermography technique...

... Abstract To investigate the application of ribbed cross-flow coolant channels with film hole effusion and the effects of the internal cooling configuration on film cooling, experimental and numerical studies are conducted on the effect of the relative position of the film holes and different...

... by a screw compressor and can be regulated independently to supply the inner and outer an- nular passages of the test rig. It allows measurements of the discharge coefficient with cross flow and co- and counter-rotating shafts with cen- trifugal and centripetal flow through the rotating holes. On the outer...

.... S-bend diffuser pressure recovery effusion cooling cross-flow 1 Copyright © 2012 by ASME PASSIVE EFFUSION COOLING IN A RECTANGULAR S-BEND DIFFUSER B.C.N. Ng A.M. Birk Queen s University Department of Mechanical and Materials Engineering McLaughlin Hall Kingston, Ontario, Canada Email: ngb...

..., with cross-flow included and on parameters suitable for correlation of the test data. A test rig was designed to simulate shaft diameters, rotation speeds and pressure ratios typical for real gas turbine designs. The pressure ratio across the orifices varied from 1.05 to 1.5 and the Mach number of the flow...

.... The influence of different geometric features is incorporated into a model for the calculation of discharge coefficients. Cross-flow discharge coefficient rotating orifice secondary air system SM NT C AL ü e A hu In an effort to provide usable further insight into flows Reax Axial Reynolds number...