Abstract: In order to improve the heat transfer efficiency of the twophase closed thermosyphon, different working conditions of the twophase closed thermosyphon under different working condition were simulated by the FLUENT software. Including,the twophase closed thermosyphon under the working condition of different influence of wall temperature of the evaporation zone, and the different filling factor of the evaporation zone on heat transfer efficiency was studied. The results showed that when the wall temperature of the evaporation was 570 K and the filling factor of the evaporation was 50%, the best heat transfer efficiency of the twophase closed thermosyphon was best.

Key words: Twophase closed Thermosyphon,    ,  Numerical simulation,    ,  Heat transfer efficiency

摘要： 为了提高两相闭式热虹吸管的传热效率, 在不同工作情况下利用F LUENT模拟软件对两相闭式热 虹吸管进行数值模拟, 主要考察两相闭式热虹吸管蒸发段的壁温、 充液率对传热效率的影响。结果表明, 当两相闭 式热虹吸管的蒸发段壁温为5 7 0K, 并且其蒸发段的充液率为5 0%时, 两相闭式热虹吸管的传热效率最佳。

关键词: 两相闭式热虹吸管,  , 数值模拟,  , 传热效率