RT Journal Article
ID 632cc196453b42e5
A1 Medghalchi, Maryam
A1 Ashgriz, Nasser
T1 A CONJUGATE MODEL FOR BUBBLE GROWTH IN LOW-VELOCITY SUBCOOLED FLOWS
JF Heat Transfer Research
JO HTR
YR 2020
FD 2020-09-14
VO 51
IS 14
SP 1337
OP 1350
K1 heat exchanger
K1 single bubble growth
K1 flow boiling
K1 multiphase flows
AB A model for the growth of a bubble on a horizontal heated surface with a constant temperature and in a subcooled condition is presented. The model considers microlayer evaporation, transient thermal boundary layer conduction, and surface condensation or evaporation. The bubble growth time is divided into several stages, and the equation describing the bubble growth is simplified for different stages using a new characteristic time, and a new characteristic size. Several analytical solutions for the bubble growth are obtained at the early stages of the bubble growth and before the bubble lifts off. It is shown that before a critical time, the bubble growth is mainly governed by microlayer evaporation, however after the critical time the bubble growth is controlled by surface evaporation.


PB Begell House
LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,19bc2a3a709b914f,632cc196453b42e5.html