Temperature and velocity fields in turbulent liquid flow adjacent to a bubbly boiling layer

Abstract

Turbulent velocity and temperature fields were measured in the all-liquid region adjacent to a subcooled flow boiling layer formed at the heated inner wall of a vertical concentric annular channel. Refrigerant-113 was the working fluid and measurements were performed at two pressures and inlet liquid Reynolds numbers of 24,400 and 33,400 over a wall heat flux range of 30,000–80,000 W/m 2. Selected measurements in nonboiling turbulent liquid flow through the same channel are also presented for comparison. The data show that significant changes in the turbulent structure of the all-liquid region are brought about by its proximity to the bubbly boiling layer.