Bibliographic Details
| Title: |
Enhancement of jet-to-wall heat transfer using axisymmetric grooved impinging plates |
| Authors: |
Sagot, B.1 benoit.sagot@estaca.fr, Antonini, G.2, Buron, F.1 |
| Source: |
International Journal of Thermal Sciences. Jun2010, Vol. 49 Issue 6, p1026-1030. 5p. |
| Subjects: |
Heat transfer, Structural plates, Nusselt number, Statistical correlation, Reynolds number, Cross-sectional method |
| Abstract: |
Abstract: An experimental investigation was carried out to examine the effects of axisymmetric lathe-worked grooves on the impinging jet-to-wall heat transfer, under constant wall temperature conditions. This study covers jet Reynolds numbers, based on the orifice diameter D, from 15 000 to 30 000, for a given jet-to-wall dimensionless distance H/D = 2. The grooves have either square or triangular cross-section, with depth c = 1 mm, and pitch p = 2 mm. Under these conditions, we obtained significant heat transfer enhancements, up to 81% as compared with the smooth plate reference case, for a value of the dimensionless plate radius R/D = 2, a jet Reynolds number Re j = 23 000, and for square cross-section lathe-worked grooves. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
