Experimental Optimization of the Compound Angled Asymmetric Laidback Fan Shaped Film Cooling Hole.
Author(s) : JO Y. R., JEONG J. Y., KWAK J. S.
Type of article: Periodical article
Summary
In this study, the effect of shape variables on the film cooling effectiveness of the compound angled asymmetric laidback fan shaped hole was experimentally investigated, and the optimum values of select design variables were presented. Among the shape variables of the compound angled asymmetric laidback fan shaped hole, the windward and leeward lateral expansion angles and the compound angle were selected as design variables. Test points were chosen using the central composite design method, and the selected design variables were optimized using the Kriging model. The film cooling effectiveness was measured using the PSP technique, and the experiment was conducted under the two density ratios of 1.5 and 2.0 and four blowing ratios of 1.0, 1.5, 2.0, and 2.5. Experimental results showed that the film cooling performance was improved for higher density ratios than lower density ratios. The main effects analysis indicated that larger windward and leeward lateral expansion angles induced higher film cooling effectiveness; however, the compound angle did not show consistent results. For the optimized hole at the density ratio 2.0, the results indicated that the overall averaged film cooling effectiveness of the optimized compound angled asymmetric laidback fan shaped hole was higher than that of the optimized fan shape holes of previous literature.
Available documents
Format PDF
Pages: 18 p.
Available
Free
Details
- Original title: Experimental Optimization of the Compound Angled Asymmetric Laidback Fan Shaped Film Cooling Hole.
- Record ID : 30030873
- Languages: English
- Subject: Technology
- Source: Energies - vol. 15 - n. 21
- Publishers: MDPI
- Publication date: 2022/11
- DOI: http://dx.doi.org/10.3390/en15217985
Links
See other articles in this issue (29)
See the source
Indexing
- Themes: Thermodynamic measurements
- Keywords: Gas turbine; Film; Cooling; Optimization; Expérimentation; Geometry
-
Large eddy simulation of film cooling: a review.
- Author(s) : AHN J.
- Date : 2022/12
- Languages : English
- Source: Energies - vol. 15 - n. 23
- Formats : PDF
View record
-
Optimization of ejection angles of double-jet f...
- Author(s) : LEE K. D., CHOI D. W., KIM K. Y.
- Date : 2013/11
- Languages : English
- Source: International Journal of thermal Sciences - vol. 73
View record
-
Film cooling performance of converging slot-hol...
- Author(s) : LIU C. L., ZHU H. R., BAI J. T., et al.
- Date : 2010/11
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 53 - n. 23-24
View record
-
Effects of Bulk Flow Pulsation on Film Cooling ...
- Author(s) : BAEK S-I., AHN J.
- Date : 2022/04
- Languages : English
- Source: Energies - vol. 15 - n. 7
- Formats : PDF
View record
-
Review of Film Cooling in Gas Turbines with an ...
- Author(s) : DUTTA S., KAUR I., SINGH P.
- Date : 2022/10
- Languages : English
- Source: Energies - vol. 15 - n. 19
- Formats : PDF
View record