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A gas turbine engine combustor is provided, having a single wall sheet metal liner which is generally annular in shape which may be corrugated and a multi-hole film cooling means which includes at least one pattern of a great many small closely spaced sharply downstream angled film cooling holes disposed essentially along portion of the liner to be cooled.
1 nov 2010 · Experimental tests have been performed to investigate the film cooling performance of converging slot-hole (console) rows on the turbine blade. Film cooling effectiveness of each single hole row ...
Trama del film The Hole streaming altadefinizione Il piano escogitato da quattro studenti inglesi per sfuggire alle noie del college: è alquanto bizzarro: trascorrere tre giorni all'interno di un bunker (appunto "il buco") utilizzato durante la seconda guerra mondiale.
11 lug 1991 · @inproceedings{Wakeman1991GasTE, title={Gas turbine engine multi-hole film cooled combustor liner and manufacturing method thereof}, author= ...
Cooling effectiveness and discharge coefficients of cylindrical gas-film cooling holes were numerically investigated to determine the effects of momentum ratio,density ratio,and turbulence on flow in the holes.The results show that with the increase of momentum ratio,the second flow deviates from the blade at the outlet of the gas-film hole and the velocity in a high velocity zone decreases ...
Proceedings of ASME Turbo Expo 2020 Turbomachinery Technical Conference and Exposition GT2020 June 22-26, 2020, London, England. GT2020-14439. LARGE EDDY SIMULATION OF THE 7-7-7 SHAPED FILM COOLING HOLE AT AXIAL AND COMPOUND ANGLE ORIENTATIONS. Kevin Tracy1, Stephen P. Lynch2. 1Pratt & Whitney, East Hartford, CT.
1 ago 2019 · High density ratio gas attaches well near hole region achieving better film cooling performance. But at downstream the film cooling effectiveness declines fast. The entropy increase contour gives an explanation: for the low density ratio coolant one leg of the counter rotating vortex pair flies off the wall at near hole region x/d = 0.5.
