壁面辐射对耦合传热系统的影响

Interaction between Film Condensation on One Side of a Vertical Wall and Natural Convection on the Other with Wall Radiation Taken into Account

本文研究了有壁面辐射时竖平板两侧膜状凝结与自然对流的耦合传热问题.文中通过壁面的耦合条件得到一组确定壁面温度分布及液膜厚度的常微分方程,并在很宽的参数范围内计算了壁面温度分布,液膜厚度,液膜及自然对流边界层内的速度及温度分布,以及壁面的温度梯度.

The effects of thermal radiation on conjugate film condensation on one side of a vertical wall and natural convection on the other are investigated. By employing the conjugate condition, ordinary differential equations for wall temperature distribution and film thickness have been obtained. The wall temperature, film thickness, velocity and temperature profiles in the condensation film and the convection boundary layer as well as the wall temperature gradient are calculated for a wide range of parameters.