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 | |
| 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
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 journal › Article
}
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.
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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
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 -