Study on bubble dynamics for pool nucleate boiling

Abstract

A characteristic length scale and a time scale are proposed to describe the dynamic growth and departure process of bubbles. A correlation between bubble departure diameter and bubble growth time is established thereby, and a predication formula for bubble departure diameter is suggested by considering the analogue between nucleate boiling and forced convection. #

Bubble departure diameter in nucleate pool boiling at saturation: Pure liquids and binary mixtures

“…Bubble v Vapor s Saturation i n t e r n a t i o n a l j o u r n a l o f r e f r i g e r a t i o n 4 6 ( 2 0 1 4 ) 5 0 e5 8 the buoyancy force" (Yang et al (2000)). They developed their model based on an empirical expression for bubble growth mechanisms.…”

“…He showed that the minimum departure size varies with Jackob number only. Yang et al (2000) established a correlation between bubble departure diameter and bubble growth time and suggested a prediction formula for bubble departure diameter by considering the analogy between nucleate boiling and forced convection. Chen et al (2004) conducted visualization experiments for nucleate pool boiling of propane and isobutane on a horizontal smooth tube and two kinds of structured enhanced tubes.…”

Bubble dynamics and heat transfer on a wettability patterned surface

“…Research [20][21][22][23][24][25][26][27][28] has been conducted on the topic of bubble behavior analysis, which provides references for our study. Generally speaking, bubble behavior includes nucleation, growth, departure and interaction.…”

Bubble dynamics in nucleate pool boiling on micro-pin-finned surfaces in microgravity

“…They considered that the vapor bubble growth rate is a necessary input to the model, and its reliable estimation was required to predict accurately departure diameters. A characteristic length scale and a time scale were proposed to describe the dynamic growth and departure process of bubbles by Yang et al [12]. A correlation between bubble departure diameter and bubble growth time was established, and a prediction formula for bubble departure diameter was suggested by considering the analog between nucleate boiling and forced convection.…”