Forced-convection film condensation on a horizontal cylinder with wavy surface structure |
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| Authors: | Cha’o-Kuang Chen Yan-Ting Lin |
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| Affiliation: | (1) Department of Mechanical Engineering, National Cheng Kung University, Tainan, 701, Taiwan |
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| Abstract: | The forced-convection film condensation on a horizontal cylinder with wavy surface structure was performed by boundary-layer-approximation. The local/mean heat fluxes were obtained for the effects of tube temperature, wave number, and wave amplitude. The mean heat flux increases with decreasing wavy amplitude and tube temperatures. Furthermore, when β = 20 and α = 0.005, the mean heat flux slightly increases from 1.1 to 3.6% compared with that of smooth tube, depending on tube temperature. |
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