Pulsating heat pipe (PHP) has drawn much attention due to its simple structure and high thermal performance. In this study, we proposed a novel PHP with separating walls within the flow channel. This could change the flow pattern of the liquid and vapor plugs, resulting the enhancement of the heat pipe thermal performance. To uncover the effect of the separating wall, we built a 2D numerical model of a single loop pulsating heat pipe to study the heat transfer mechanism of the proposed novel PHP. The effects of the separating wall locations and the PHP filling ratios were investigated at the bottom heating conditions. The results showed that the novel PHP had the best thermal performance at the filling ratio of 70% in our study and the thermal performance could be enhanced by 14% compared to the classical PHP without the separating wall. Besides, the separating wall located at the inner side of the heat pipe channel performed best at the filling ratios of 30% and 50%, whereas the separating wall located at the middle of the flow channel had the highest equivalent thermal conductivity at the filling ratio of 70%.

脉动热管（PHP）因其结构简单、热性能高而备受关注。在这项研究中，我们提出了一种在流道内具有分隔壁的新型 PHP。这可能会改变液体和蒸汽塞的流动模式，从而提高热管的热性能。为了揭示分隔墙的影响，我们建立了单回路脉动热管的二维数值模型，以研究所提出的新型 PHP 的传热机制。在底部加热条件下研究了分隔壁位置和 PHP 填充率的影响。结果表明，在我们的研究中，新型 PHP 在 70% 的填充率下具有最佳的热性能，与没有分隔墙的经典 PHP 相比，其热性能可提高 14%。除了，