近年来微槽内的液体流动和传热受到了广泛关注,成为新的研究热点。本文在对热润湿作用下水平螺旋管表面反重力流形成及其流动特性进行探索的基础上,建立了适用于水平螺旋槽管壁面二元混合物反重力流蒸发传热传质耦合的物理模型。模拟结果表明,由于液膜内部存在着传质,径向有明显的浓度梯度,从而降低了蒸发传热的温度推动力。酒精溶液的浓度越高,换热系数越小,表明溶液中传质对传热有抑制作用,且其影响不可忽略。 In recent years, the liquid flow and heat transfer in the microgrooves have received widespread attention and become new research hotspots. Based on the exploration of formation and flow characteristics of anti-gravity flow on horizontal spiral tube surface under hot wetting, a physical model suitable for inverse gravitation evaporation heat and mass transfer coupling of binary mixture on horizontal spiral groove wall was established . The simulation results show that due to the mass transfer inside the liquid film, there is a clear concentration gradient in the radial direction, which reduces the temperature driving force for evaporation heat transfer. The higher the concentration of alcohol solution, the smaller the heat transfer coefficient, indicating that mass transfer in solution has an inhibitory effect on heat transfer, and its influence can not be ignored.