Techniques for increasing the film cooling efficiency by means of the vortex near-wall jets
V.I. Terekhov and N.E. Shishkin
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
E-mail: terekhov@itp.nsc.ru
Keywords: swirl gas cooling, thermal efficiency, arrangement of near-wall gas cooling
Pages: 721–728
Abstract
Experimental results on the effect of the methods of gas cooling arrangement on thermal efficiency are presented. The swirl cooling is considered at both injecting along the axis and co-axial supply of the cooling gas. The influence of swirling degree, density ratio of both flows and flow regimes on the efficiency of near-wall cooling is considered.
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