| Titre : | Measurements of local nusselt number with a miniscale laminar confined slot-Jet impinging on a flat plate (2011) |
| Auteurs : | Dae Hee Lee, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 50 N° 10, Mai 2011) |
| Article en page(s) : | pp. 6508-6512 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Flat plate Nusselt number |
| Résumé : | Heat transfer characteristics in a miniscale laminar confined slot-jet on a heated plate at uniform heat flux are experimentally investigated. The effects of the jet Reynolds number (Re = 120-180) on the heat transfer and flow are considered. An electrically heated gold film Intrex (a very thin gold-coated polyester substrate sheet) is used to create a uniform heat flux on the flat surface. The temperature on the surface is measured by thermochromic liquid crystals and a digital color image processing system. Recorded color images of liquid crystals are then used to determine the local Nusselt numbers along the surface. The results show a peculiar behavior in that the Nusselt number increases between Re = 120 and Re = 140, suddenly drops at around Re = 150-160, and increases again beyond Re = 160. This sudden drop of Nusselt number at around Re = 150-160 may be caused by a sinusoidal fluctuation of the jet flow. |
| DEWEY : | 660 |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=24158949 |
