Effects of flow turbulence on film cooling efficiency

V. P. Lebedev, V. V. Lemanov, S. Ya Misyura, V. I. Terekhov

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Results of experimental investigations on film cooling effectiveness in high-turbulent flow are represented in this paper. The turbulence intensity changed within the range Tu o = 0.2-15% and the injection parameter was 0.1 < m < 2.5. It has been established that at small injection parameters (m < 1) the high-turbulence intensity of flow results in a significant decrease (down to 400-500%) of the film cooling effectiveness compared to low-turbulence flow. At big injection parameters (m > 1) the turbulence effect weakens. The experimental data generalization and its comparison with the results of the calculation carried out by asymptotic theory are given.

Original languageEnglish
Pages (from-to)2117-2125
Number of pages9
JournalInternational Journal of Heat and Mass Transfer
Volume38
Issue number11
DOIs
Publication statusPublished - 1 Jan 1995
Externally publishedYes

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turbulence effects
film cooling
turbulent flow
Turbulence
turbulence
injection
Cooling
Turbulent flow

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Effects of flow turbulence on film cooling efficiency. / Lebedev, V. P.; Lemanov, V. V.; Misyura, S. Ya; Terekhov, V. I.

In: International Journal of Heat and Mass Transfer, Vol. 38, No. 11, 01.01.1995, p. 2117-2125.

Research output: Contribution to journalArticle

Lebedev, V. P. ; Lemanov, V. V. ; Misyura, S. Ya ; Terekhov, V. I. / Effects of flow turbulence on film cooling efficiency. In: International Journal of Heat and Mass Transfer. 1995 ; Vol. 38, No. 11. pp. 2117-2125.
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