Abstract
Experimental study was conducted to investigate the influence of rotation number (Rt = ωD/u∞) on the film cooling performance over a convex surface. Measurements of film cooling effectiveness η ad and heat transfer coefficient hf were presented for single film hole. Thermochromic liquid crystal (TLC) was used to obtain the temperature distributions on the curved surface. The results show that (1) an obviously deflection occurs under the rotating condition; (2) with the increase of rotation number, the film cooling effectiveness decrease while the heat transfer coefficient increase; (3) a reattachment phenomenon can be observed in the rotating condition.
| Original language | English |
|---|---|
| Pages (from-to) | 838-841 |
| Number of pages | 4 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 35 |
| Issue number | 7 |
| State | Published - Jul 2009 |
Keywords
- Curved surface
- Experiment
- Film cooling
- Rotating
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