[article]
| Titre : |
Flow modes and mode transitions for falling films on flat tubes |
| Type de document : |
texte imprimé |
| Auteurs : |
Xiaofei Wang, Auteur ; P. S. Hrnjak, Auteur ; S. Elbel, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
09 p. |
| Note générale : |
Heat transfer |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Drops External flows Film flow Flow instability visualisation Jets Laminar to turbulent transitions Liquid films Pipe Two-phase |
| Index. décimale : |
536 Chaleur. Thermodynamique |
| Résumé : |
Flow mode transitions for a liquid film falling over flat tubes are studied for a wide range of conditions. Hydraulic oil, ethylene glycol, ethylene-glycol-water mixtures (at three different volume ratios), and water are used as working fluids in experiments conducted under adiabatic conditions, without an imposed vapor flow. The flow modes are observed over a range of flow rate and tube spacing. The flow modes are more complex but similar to those manifested on round tubes, and include the sheet, sheet-jet, jet, jet-droplet, and droplet modes. However, the transitions at Ga1/4 |
| DEWEY : |
536 |
| ISSN : |
0022-1481 |
| En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000002 [...] |
in Journal of heat transfer > Vol. 134 N° 2 (Fevrier 2012) . - 09 p.
[article] Flow modes and mode transitions for falling films on flat tubes [texte imprimé] / Xiaofei Wang, Auteur ; P. S. Hrnjak, Auteur ; S. Elbel, Auteur . - 2012 . - 09 p. Heat transfer Langues : Anglais ( eng) in Journal of heat transfer > Vol. 134 N° 2 (Fevrier 2012) . - 09 p.
| Mots-clés : |
Drops External flows Film flow Flow instability visualisation Jets Laminar to turbulent transitions Liquid films Pipe Two-phase |
| Index. décimale : |
536 Chaleur. Thermodynamique |
| Résumé : |
Flow mode transitions for a liquid film falling over flat tubes are studied for a wide range of conditions. Hydraulic oil, ethylene glycol, ethylene-glycol-water mixtures (at three different volume ratios), and water are used as working fluids in experiments conducted under adiabatic conditions, without an imposed vapor flow. The flow modes are observed over a range of flow rate and tube spacing. The flow modes are more complex but similar to those manifested on round tubes, and include the sheet, sheet-jet, jet, jet-droplet, and droplet modes. However, the transitions at Ga1/4 |
| DEWEY : |
536 |
| ISSN : |
0022-1481 |
| En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000002 [...] |
|
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