本文对同轴旋转圆柱型热管在水平及倾斜(重力辅助)情况下的冷凝段放热特性进行了对比性研究,从流型的角度对传热机理进行讨论,并通过建立流动模型及微分方程从理论上分析了倾角对凝结放热特性的影响,最后将理论结果与实验数据进行了比较。实验结果表明,水平及倾斜情况下都存在着一个临界转速,达到这个转速后,放热系数急剧下降。 In this paper, the heat transfer characteristics of coaxial rotating cylindrical heat pipes under horizontal and inclined (gravitational aids) conditions are compared. The heat transfer mechanism is discussed from the perspective of flow pattern. Through the establishment of flow model and differential equation The influence of dip angle on the exothermic characteristics of condensation is analyzed theoretically. Finally, the theoretical results and experimental data are compared. The experimental results show that there is a critical speed in both the horizontal and the inclined conditions, and at this speed the exothermic coefficient drops drastically.