Flow velocity effect on the sliding and detachment of a bubble

Abstract

As part of this numerical study, we attempted to analyze the sliding and detachment of a vapor bubble after it grew on a heated plate in a convective flow. We then proceeded to simulate the sliding process and the detachment of a vapor bubble located in a channel. The fluid has a flow velocity varying from 0.4 to 1 m/s. The contact angle of the bubble with the hot wall was taken equal to 44, 54, and 64°. We followed the evolution of the time and the distance of sliding until the detachment of the bubble. The contours of temperature and the coefficient of heat transfer were also analyzed.