【摘要】 高温热管启动运行的过程，通常需要划分为多个阶段，并采用不同的方法进行模拟分析。本文将其中的模拟方法融合，并形成一套统一的模拟方案。利用MATLAB/Simulink的多物理建模工具Simscape模拟了高温钠热管实验测试系统，并且模拟了通过加热器使热管从室温到工作温度（>800 K）的升温过程。热管启动阶段吸收了“平面前锋”法的计算方案，稳态运行阶段采用热阻网络模型。将计算结果与已有数据对比发现，该方法符合得较好。表明该方法可以在一定程度上模拟热管系统的稳态和瞬态过程。该方法具有计算过程占用资源少、耗时短的特点，为分析热管系统提供了一种新的解决方案。更多还原

【Abstract】 The startup process of high temperature heat pipe usually needs to be divided into multiple stages and studied by different simulation methods. In this paper, some simulation methods are combined to form a unified simulation scheme. The experimental test system of high temperature sodium heat pipe was built using simscape, a multiphysics modeling tool of MATLAB/Simulink. The heating process from room temperature to operating temperature(>800 K) was simulated. The startup stage of the heat pipe was calculated by the equation of the flat-front startup model, and the steady state operation stage was solved by a thermal resistance model. Comparing the calculation results with the reference data, it is found that, the two methods are in good agreement. It shows that the method introduced by this paper can simulate the steady state and transient processes of the heat pipe system to a certain extent. And it is the characteried by less resource occupation and shorter time consumption in the calculation process, which provides a new solution for the analysis of heat pipe system.更多还原