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从对流与导热的相似性出发,揭示了潜热型功能热流体强化换热的物理机制.针对平均比热容模型的局限,发展了内热源模型,优化了其数值计算方法,对影响速度充分发展的等壁温圆管内该类流体层流流动换热强化的各因素进行了敏感性分析,弄清了影响换热强化的主要因素及其强化换热的机理,提出了表征功能热流体换热强化程度的修正Nu数.
Based on the similarity of convection and thermal conductivity, the physical mechanism of heat transfer enhancement for latent heat functional fluid is revealed.According to the limitation of the average specific heat capacity model, an internal heat source model is developed and its numerical calculation method is optimized. The sensitivity analysis of the factors that affect the flow heat transfer enhancement of the fluid laminar flow in the wall temperature circular pipe was made. The main factors affecting the heat transfer enhancement and the mechanism of heat transfer enhancement were clarified. The heat transfer enhancement The number of correct Nu.