Effects of flow turbulence on film cooling efficiency

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

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	2117-2125
Number of pages	9
Journal	International Journal of Heat and Mass Transfer
Volume	38
Issue number	11
DOIs	https://doi.org/10.1016/0017-9310(94)00323-N
Publication status	Published - 1 Jan 1995
Externally published	Yes

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ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

Cite this

Lebedev, V. P., Lemanov, V. V., Misyura, S. Y., & Terekhov, V. I. (1995). Effects of flow turbulence on film cooling efficiency. International Journal of Heat and Mass Transfer, 38(11), 2117-2125. https://doi.org/10.1016/0017-9310(94)00323-N

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10.1016/0017-9310(94)00323-N