000265164 001__ 265164
000265164 005__ 20190812204800.0
000265164 022__ $$a2410-4833
000265164 037__ $$aCONF
000265164 245__ $$aNarrow Impingement Channels: Recent Advancements and Future Directions
000265164 260__ $$bEuropean Turbomachinery Society$$c2019
000265164 269__ $$a2019
000265164 300__ $$a15
000265164 336__ $$aConference Papers
000265164 490__ $$aConference Proceedings Repository
000265164 520__ $$aThis paper summarizes the state-of-the-art related to the heat transfer characteristics of narrow impingement cooling channels, which can nowadays be integrated within the external wall of turbine airfoils. Particular emphasis is given to the experimental outcomes of the research activities performed at the Group of Thermal Turbomachinery (GTT) of EPFL over the last 10 years. The influence of various geometrical factors on the heat transfer distributions is demonstrated, aiming to provide a summarized physical knowledge for the thermal design of such configurations. More specifically, effects of channel height and width, streamwise jet-to-jet spacing, impingement hole staggering arrangements, varying jet diameters, convergent and divergent channel geometries, as well as effects of number of holes, are addressed for all channel interior surfaces. Existing correlations are also presented and compared to empirical models derived from traditional multi-array impingement jet systems. Furthermore, future research directions in the form of sequential impingement cascades are also discussed.
000265164 6531_ $$aGTT
000265164 6531_ $$aHeat Transfer
000265164 6531_ $$aExperimental
000265164 6531_ $$aFlow Measurement
000265164 6531_ $$aCooling
000265164 6531_ $$aGas Turbine
000265164 6531_ $$aAeroengine
000265164 6531_ $$aLiquid Crystals
000265164 700__ $$g137458$$aGaffuri, Michele$$0249887
000265164 700__ $$g197108$$aTerzis, Alexandros$$0243259
000265164 700__ $$0240715$$aOtt, Peter$$g106017
000265164 7112_ $$dApril 8-12, 2019$$cLausanne, CH$$aETC13 - European Turbomachinery Conference
000265164 773__ $$tProceedings of the 13th European Turbomachinery Conference
000265164 8560_ $$fpeter.ott@epfl.ch
000265164 8564_ $$zFinal$$uhttps://infoscience.epfl.ch/record/265164/files/2019_Gaffuri_Paper%20ETC2019-252.pdf$$s3377880
000265164 909C0 $$pGTT$$mpeter.ott@epfl.ch$$0252405$$zMarselli, Béatrice$$xU12401
000265164 909CO $$pconf$$pSTI$$ooai:infoscience.epfl.ch:265164
000265164 960__ $$apeter.ott@epfl.ch
000265164 961__ $$afantin.reichler@epfl.ch
000265164 973__ $$aEPFL$$rREVIEWED
000265164 980__ $$aCONF
000265164 981__ $$aoverwrite