在椭圆管外液膜流动数值模拟的基础上,对椭圆管外的液膜厚度和传热性能进行了实验研究。研究结果表明:椭圆管外液膜厚度的模拟计算与实验结果基本吻合,误差约8%,可见数值模拟方法正确;长短轴比为1.5的椭圆传热管的传热系数比圆管提高20%～22%,可见椭圆管型强化传热明显。 Based on the numerical simulation of the liquid film flow outside the oval tube, the thickness and heat transfer performance of the liquid film outside the oval tube were experimentally studied. The results show that the simulation of the thickness of the oval tube is basically consistent with the experimental results, the error is about 8%, which shows that the numerical simulation method is correct. The heat transfer coefficient of the elliptical tube with long / short axis ratio of 1.5 is 20% ~ 22%, showing oval tube enhanced heat transfer significantly.