关键词:

接触角, 膜状冷凝, 强化传热, 固液界面效应

Abstract: In order to study the influence of solid-liquid interfacial energy on the filmwise condensation heat transfer performance, a correlation relating heat transfer coefficient with contact angle was derived with respect to liquid film flow and heat transfer at vapor-liquid interface. The calculated results for steam filmwise condensation indicated that heat transfer coefficient increased with increasing contact angle when the contact angle was within a certain range. When contact angle was very small (approaching 0°), the predicted heat transfer coefficient was consistent with the result of classic Nusselt theory.

Key words:

接触角, 膜状冷凝, 强化传热, 固液界面效应