建立了“Ω”形轴向槽道热管瞬态传热的理论模型并进行了数值求解，研究了该型热管的启动特性。研究结果表明，热管蒸发段、绝热段以及冷凝段的壁面温度在启动过程中能够实现协调一致的动态响应。热管启动后，蒸发段前端毛细半径首先急剧减小，热管壁温近似线性急剧增加，随时间的推进，两者变化速度皆逐渐减缓直至稳定状态。并且，热负荷大小对热管由初始启动状态达到稳定状态所需时间影响较小。
A theoretical model of transient heat transfer in heat pipes with axially ＂Ω＂-shaped grooves is developed and analyzed numerically to investigate the startup characteristics. It is indicated that, in the startup process, the coordination of temperature response is realized among the wall temperatures of evaporator, adiabatic and condenser section. When startup, the capillary radius at evaporator end cap decreases drastically, while the wall temperature grows rapidly in a nearly linear fashion. With the process going, these two factors changes slowly until to a steady state. In addition, the effect of heat load on the duration time from initial startup to steady state is not obvious.
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