| Autor: |
Gregory Rodebaugh, Daniel Getsinger, Jason E. Dees |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
45th AIAA Fluid Dynamics Conference. |
| DOI: |
10.2514/6.2015-2929 |
| Popis: |
A flat plate film cooling experimental facility has enabled a study of the flowfield features and film performance characteristics of a single row of standard axial-shaped holes (ASH). Surface IR thermography and particle image velocimetry (PIV) were used to quantify blowing ratios impact on both flow and heat transfer in the ASH film row configuration. At constant freestream flow conditions, the blowing ratio was adjusted by altering the coolant flow rate. Performance was analyzed via IR measurements at three nominal blowing ratios by contours of adiabatic effectiveness as well as lateral and area-averaged adiabatic effectiveness. 2D PIV measurements were utilized as an additional flow diagnostic to examine the film jet structural variation with blowing ratio, and to provide a link between the behavior of the near-wall flowfield and the surface cooling. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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