Effects of flow turbulence on film cooling efficiency

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

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

Access to Document

10.1016/0017-9310(94)00323-N

Fingerprint Dive into the research topics of 'Effects of flow turbulence on film cooling efficiency'. Together they form a unique fingerprint.

Cite this

@article{f3687cb107704171ad9e90fc2d68fb6a,

title = "Effects of flow turbulence on film cooling efficiency",

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.",

author = "Lebedev, {V. P.} and Lemanov, {V. V.} and Misyura, {S. Ya} and Terekhov, {V. I.}",

year = "1995",

month = jan,

day = "1",

doi = "10.1016/0017-9310(94)00323-N",

language = "English",

volume = "38",

pages = "2117--2125",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

publisher = "Elsevier Limited",

number = "11",

}

TY - JOUR

T1 - Effects of flow turbulence on film cooling efficiency

AU - Lebedev, V. P.

AU - Lemanov, V. V.

AU - Misyura, S. Ya

AU - Terekhov, V. I.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0029328761&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029328761&partnerID=8YFLogxK

U2 - 10.1016/0017-9310(94)00323-N

DO - 10.1016/0017-9310(94)00323-N

M3 - Article

AN - SCOPUS:0029328761

VL - 38

SP - 2117

EP - 2125

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

SN - 0017-9310

IS - 11

ER -

Effects of flow turbulence on film cooling efficiency

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this