The growth of a vapor bubble in a superheated liquid is controlled by three factors: the inertia of the liquid, the surface tension, and the vapor pressure. As the bubble grows, evaporation takes place at the bubble boundary, and the temperature and vapor pressure in the bubble are thereby decreased. The heat inflow requirement of evaporation, however, depends on the rate of bubble growth, so that the dynamic problem is linked with a heat diffusion problem. Since the heat diffusion problem has been solved, a quantitative formulation of the dynamic problem can be given. A solution for the radius of the vapor bubble as a function of time is obtained which is valid for sufficiently large radius. This asymptotic solution covers the range of physical interest since the radius at which it becomes valid is near the lower limit of experimental observation. It shows the strong effect of heat diffusion on the rate of bubble growth. Comparison of the predicted radius‐time behavior is made with experimental observations in superheated water, and very good agreement is found.

The growth of vapor bubbles in superheated liquids. report no. 26-6

A unified model for the prediction of bubble detachment diameters in boiling systems—II. Flow boiling

Over 1000 sets of data for forced convective boiling of distilled water, ethylene glycol and aqueous mixtures of ethylene glycol are reported. Most of these data were taken in the annular flow regime. These data indicate a previously unrecognized Prandtl number effect on the boiling heat transfer for both pure components and mixtures. A significant reduction in the heat transfer coefficient is observed for mixtures attributable to mass transfer effects. An expression is developed which accounts for both of these effects and correlates the experimental data to within a mean deviation of 14.9%. This correlation reduces to the standard Chen correlation for pure fluids with Prandtl numbers close to unity.

Forced convective boiling in vertical tubes for saturated pure components and binary mixtures

Experimental studies on CHF characteristics of nano-fluids at pool boiling

Transient and statistical measurement techniques for two-phase flows: A critical review

Bubble growth rates in pure and binary systems: Combined effect of relaxation and evaporation microlayers

Bubble growth rates in nucleate boiling of water at subatmospheric pressures

Investigations on the critical heat flux of pure liquids and mixtures under various conditions

Local temperature fluctuations in saturated pool boiling of pure liquids and binary mixtures

A survey is given of theoretical asymptotic bubble behaviour which is governed by heat or/and mass diffusion towards the bubble boundary. A model has been developed to describe the effect of turbulent forced flow on both bubble behaviour and ohmic resistance. A comparison with experimental results is also made.

W.M. Sluyter

Papers

Bubble growth rates in pure and binary systems: Combined effect of relaxation and evaporation microlayers

Bubble growth rates in nucleate boiling of water at subatmospheric pressures

Investigations on the critical heat flux of pure liquids and mixtures under various conditions

Local temperature fluctuations in saturated pool boiling of pure liquids and binary mixtures

Mass diffusion-controlled bubble behaviour in boiling and electrolysis and effect of bubbles on ohmic resistance