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为了研究射流冲击对扰流柱通道内壁面的换热,以及射流孔板与扰流柱前缘的距离对通道换热的影响规律,采用薄膜加热片作为加热器提供等热流边界条件,对带射流孔板的矩形扰流柱通道进行了换热实验。实验结果表明在通道中布置扰流柱可以明显增强通道换热,且在扰流柱排前放置射流孔板可进一步对换热进行强化。实验还发现,射流孔板与扰流柱的间距不同,对通道换热的影响不同;在间距相同的情况下,射流孔板对不同位置的扰流柱换热的影响程度也有所差异。
In order to study the influence of jet impact on the heat transfer on the inner wall of the channel, the influence of the distance between the jet orifice and the front edge of the spoiler on the channel heat transfer, a thin film heater was used as the heater to provide equal heat flux boundary conditions. Rectangle spoiler flow channel orifice for heat transfer experiments. The experimental results show that arranging the spoiler in the passageway can obviously enhance the heat transfer of the passageway, and placing the jet orifice plate in front of the spoiler column can further strengthen the heat exchange. The experiment also found that the distance between the jet orifice and the spoiler is different, which has different influence on the heat transfer of the passage. The effect of the jet orifice on the heat transfer of the spoiler at different positions is also different under the same spacing.