ABSTRACT
More than 40 years ago, Bromley et al. conducted the first systematic theoretical and experimental studies for heated cylinders experiencing flow film boiling and subcooled flow film boiling as extensions of his seminal work on pool film boiling. The key to predicting heat transfer is being able to predict how the vapor layer develops around the body. Doing this requires knowledge of the vapor velocity and temperature profiles. Once the vapor thickness is known, it is a straightforward matter to integrate for the total heat transfer from the body. Liu and Theofanous analyzed flow film boiling from spheres using essentially the same laminar model as Witte and Orozco up to the separation point. They found that for saturated liquids, the heat transfer in the wake could be adequately accounted for by assuming a constant thickness of the vapor film in the wake equal to the vapor film thickness at the separation point.
