Numerical simulation of a flat plate film cooling with a coolant supply into differ-ent shape indentations
A.A. Khalatov1,2, N.A. Panchenko1,2, and S.D. Severin1
1Institute of Engineering Thermophysics, National Academy of Sciences of Ukraine, Kiev, Ukraine
2I. Sikorsky National Technical University of Ukraine, “Kiev PolytechnicВ Institute”, Kiev, Ukraine
E-mail: Artem.Khalatov1942@gmail.com
Keywords: film cooling, film-cooling efficiency, surface dimples, triangular craters,, transverse trench
Pages: 731–737
Abstract
Results of a film
cooling numerical simulation over a flat plate with coolant supply into
indentations of different shape are reported. The calculations were performed for the blowing-ratio changed from 0.5
to 2.0. For comparison, data for traditional film cooling scheme with one row
of discrete cylindrical inclined holes were used. At small value of blowing ratio (m = 0.5), the average film-cooling efficiency is roughly
identical for all indentations tested. With blowing ratio growth, the scheme
with a coolant supply into the transverse trench demonstrates the best results.
DOI: 10.1134/S0869864317050080
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