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chifan446(金币+60, 翻译EPI+1):翻译水平很高。 2010-11-17 09:26:13
可能感觉如此翻译好点，多点被动语态，被强调的做主语！
Under the guidance of sustainable development and Low Carbon Economy concept, new engery has been exploited. Meanwhile, plentful of trial and test are devoted to saving and enhancing utilization efficiency of energy. It was ascribed to the fact that enhancing the utilized efficiency of energy means energy saving. Passive augmentation heat transfer is popularly applied to the fields of augmentation heat transfer, owing to the advantages of the simple structure and no required additional power.
Longitudinal vortex generater delegated a kind of effective passive augmentation heat transfer technology. The heat transfer characteristics and velocity distribution of a new integrated rectangular wing were studied in the paper. It was found that new integrated rectangular wing is a more ideal flow unit for vortex generater as compared with rectangular wing. In addition, it is most effective placement of the generater that is placed in the lee of the wind. And the generater with 30° airfoil angle of integrated rectangular wing exhibited superior heat transfer characteristics to that with 45°of airfoil angle.
Based on the analysis of the velocity fields from different cross sections, it was found that satellite vortex structure was formed behind flow element by the induction of airfoil of vortex generater with integrated wings. Because of the different placements, the positions and sizes of satellite vortex were different. Though comparing optical channel, the temperature decrease of heating plate and the corresponding related data from velocity fields, it also found that the satellite vortex effect was responsible for the preferable heat transfer characteristics of such novel vortex generater. |
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