对布置不同结构形式纵向涡发生器的矩形通道内的流动换热性能进行数值研究，并与光通道进行比较。结果表明，涡发生器可强化流体的换热性能。应用场协同理论，对矩形通道内纵向涡发生器强化传热机理进行分析。在相同Re下，全场体积平均协同角较小的矩形通道对应的对流换热系数较大。以JF因子为比较准则，对矩形通道内综合流动换热性能进行比较，发现CFU式三角形翼纵向涡发生器与椭圆支柱组合能够提供最好的综合流动换热性能。
In this study, effects of longitudinal vortex generator configurations (Case A-F) on the heat transfer and flow friction characteristics in a rectangular channel are investigated using numerical method. The results show that longitudinal vortex generator enhances the heat transfer performance, compared with the smooth channel. The field synergy principle analyses indicate that the intersection angles between velocity and temperature gradient of all longitudinal vortex generator configurations are smaller than that of smooth channel, and the comparison results show that at the same Reynolds number the smaller synergy angle the larger the Nusselt number is completely consistent with the field synergy principle. Comparisons of the performance evaluation parameter, JF factor, indicate that Case F has the best overall heat transfer performance and that Case F brings about more enhancement of heat transfer at a modest expense of the additional pressure. Therefore, Case F is a suitable configuration for enhancing the overall heat transfer performance for channels.
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