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| Content Provider | Springer Nature Link |
|---|---|
| Author | New, T. H. Tsovolos, D. |
| Copyright Year | 2009 |
| Abstract | Digital particle image velocimetry was used to study hybrid inclined nozzles formed by combining flat- and inclined-sections, where the latter are designed based on the aspect-ratios (AR = 2 and 4) of half-ellipses. Results show that AR2 nozzle exhibits flow behaviour largely similar to inclined nozzles with inclined vortex roll-ups moving away from the nozzle centerline. In contrast, AR4 nozzle leads to significantly more intense near-field flow behaviour caused by the sharper junctions, which prevent similar movement of the vortex roll-ups. Streamwise vortices are also observed to form off the peaks of inclined-sections which produce wider jets-spreads along the inclined-sections due to associated lateral jet fluid ejection, though there is a limit to the jet-spread increment. Lastly, both nozzles produce higher turbulent stress levels over those of the conventional circular nozzle, and vortex roll-up vectoring leads to higher turbulent stresses for the AR2 nozzle along certain measurement planes. |
| Starting Page | 485 |
| Ending Page | 509 |
| Page Count | 25 |
| File Format | |
| ISSN | 13866184 |
| Journal | Flow, Turbulence and Combustion |
| Volume Number | 83 |
| Issue Number | 4 |
| e-ISSN | 15731987 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2009-03-04 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Jets Indeterminate-origin nozzle Inclined nozzle Digital particle image velocimetry Automotive Engineering Mechanics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Physical and Theoretical Chemistry Chemical Engineering |
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