Abstract
Film cooling effectiveness for injection from single row and double row dustpan-shaped holes was studied experimentally. The difference in cooling performance between single row and double row holes are described. The results show that the optimal blowing ratio of injection from double row holes is higher than that of injection from a single row hole. In the case of higher blowing ratios, the traditional superposition calculation method underpredicts the film cooling effectiveness of the double row injection based on that of the single row hole injection. The modified superposition calculation method is given in this paper.
| Original language | English |
|---|---|
| Pages (from-to) | 208-217 |
| Number of pages | 10 |
| Journal | Heat Transfer - Asian Research |
| Volume | 37 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jun 2008 |
Keywords
- Aerospace propulsion system
- Dustpan-shaped hole
- Film cooling
- Superposition method