Abstract
The influence of a protruding pedestal on impinging jet heat transfer is investigated. A discretely heated portion of a protruding pedestal is exposed to a single circular impinging air jet with Re = 10,000-30,000. Jet exit diameters of 3.5, 9.5 and 21 mm are positioned at jet exit-to-surface distances of 2-5 diameters. The nondimensional heat transfer over the discretely heated portion of the pedestal is compared to a flat plate design to gauge the effects of Reynolds number, jet diameter and jet exit-surface spacing. In all cases, the presence of the protruding pedestal downstream is found to increase heat transfer.
| Original language | English |
|---|---|
| Pages (from-to) | 893-901 |
| Number of pages | 9 |
| Journal | Experimental Thermal and Fluid Science |
| Volume | 28 |
| Issue number | 8 |
| DOIs | |
| State | Published - Oct 2004 |
| Externally published | Yes |
Keywords
- Impingement heat transfer
- Jet impingement
- Jets