The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
将传质方程引入到垂直管降膜蒸发传热模型中，求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
The results showed that compared to conventional smooth segment baffle heat exchanger, the plate heat exchanger(PHE) can effectively strengthen the film heat transfer coefficient of the shell side.
研究结果表明，与传统的光滑管弓形隔板换热器相比，板式换热器能非常有效地强化空气侧的膜传热系数。
The grooves on the heated surface lowered the flow resistance and enhanced the film heat transfer coefficient 2-3 times that of flat plates.
相同雷诺数的槽板平均表面换热系数是平板的2～3倍，同时减小了流动阻力。
The simulation results indicate that the effect of solution feed flow and heat flux has a high influence on heat and mass transfer coefficient of falling film evaporation.
模拟结果表明，进口流量和热负荷对降膜蒸发传热传质系数的影响较为显著。
The more the rows of cooling film, the higher the heat transfer coefficient along the flowing direction.
多排气膜叠加，也使得换热增强系数沿流向增加。
Several problems involved in the prediction of heat transfer coefficient on the turbine blade profiles without film cooling are studied in this paper for the purpose of improving the accuracy.
本文用数值方法计算了无气膜冷却涡轮叶片上包括前驻点的整个型面上的换热系数。
Several problems involved in the prediction of heat transfer coefficient on the turbine blade profiles without film cooling are studied in this paper for the purpose of improving the accuracy.
本文用数值方法计算了无气膜冷却涡轮叶片上包括前驻点的整个型面上的换热系数。
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