饱和下降液膜的稳定性研究

Study on the Stability of Satruated Liquid Film Falling along a Vertical Plate

通过简化表面张力、蒸汽压力和液膜波动之间的关系,用线性理论分析了饱和液膜在等温竖壁上的流动稳定性,讨论了雷诺数、波数、壁面和液膜温差及流体物性变化的影响。

The linearized stability of saturated liquid film flowing over a constant temperature, vertical plate is investigated by approximating the relation between the surface tension, the vapor reactive pressure and the wave motion of film. Effects of Renolds number, wave number, temperature difference between the plate and film, and the liquid property variation are discussed.