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EnglishUsing a laser-Doppler anemometer detailed velocity and turbulence measurements have been done on a model of bayonet tube heat exchanger. The model consists in a high aspect ratio rectangular channel with a wall provided with square ribs periodically spaced. Detailed velocity and Reynolds stress distributions are shown and analyzed. Highly unsteady, separated flow regions are present in front, over, and downstream of the rib. The flow field is analyzed and compared to the ones of classic separating and reattaching flows; similarities with those cases have been found.
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| Titolo: | DETAILED LDV FLOW FIELD MEASUREMENTS ON A MODEL OF BAYONET TUBE EQUIPPED WITH HEAT TRANSFER AUGMENTING DEVICES | |
| Autori: | ||
| Data di pubblicazione: | 1998 | |
| Abstract: | Using a laser-Doppler anemometer detailed velocity and turbulence measurements have been done on a model of bayonet tube heat exchanger. The model consists in a high aspect ratio rectangular channel with a wall provided with square ribs periodically spaced. Detailed velocity and Reynolds stress distributions are shown and analyzed. Highly unsteady, separated flow regions are present in front, over, and downstream of the rib. The flow field is analyzed and compared to the ones of classic separating and reattaching flows; similarities with those cases have been found. | |
| Handle: | http://hdl.handle.net/11567/538542 | |
| Appare nelle tipologie: | 04.01 - Contributo in atti di convegno |
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