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Evaporation front propagation over a non-isothermal surface
Thermophysics and Aeromechanics ( IF 0.5 ) Pub Date : 2021-03-05 , DOI: 10.1134/s0869864320060098
V. E. Zhukov , E. Yu. Slesareva

The experiments are performed on R21 freon at a reduced pressure of 0.04 under conditions of natural convection. The propagation velocity of a self-sustaining evaporation front over a heat transfer surface is measured in the presence of a substantial temperature gradient along the heat transfer surface. The stabilization of the front propagation velocity is shown in accordance with the isotherm propagation velocity. The experiments show that when the evaporation front propagates over a heat-transfer surface with a significant temperature gradient, the stabilization of the front velocity occurs on a scale of the order of the capillary constant.



中文翻译:

蒸发锋面在非等温表面上的传播

在自然对流条件下,在R21氟利昂上在0.04的减压下进行实验。在沿传热表面存在相当大的温度梯度的情况下,测量了自持蒸发前沿在传热表面上的传播速度。根据等温线传播速度示出了前部传播速度的稳定。实验表明,当蒸发前沿在具有明显温度梯度的传热表面上传播时,前沿速度的稳定发生在毛细管常数的数量级上。

更新日期:2021-03-05
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