Numerical investigation on bubble dynamics during pool nucleate boiling in presence of a non-uniform electric field by LBM

Abstract

• A numerical model was built to simulate the pool boiling under an electric field. • The single bubble nucleate boiling under a radial electric field was simulated. • A radial electric field could accelerate the departure of the vapor bubble. • Decreasing gravity could enhance the effect of electric field on bubble dynamics. • The total electric field force increased firstly and then decreased over time.

Numerical simulation of electric field-induced phase transition evolution and boiling characteristics in the evaporative cooling medium C6F12O

“…Introducing dimensionless parameters to characterize the motion characteristics of bubbles [41], the characteristic time (t * ), bubble release frequency (f * ), characteristic velocity (u * ), and statistical velocity (ū) are defined as shown in equations ( 11) and ( 12):…”

“…The electric Bond number (Bo E ) provides a characterization of the interplay between the electric field force and surface tension acting on bubbles during their motion [41]. This allows for the quantification of the dynamic behavior of bubbles under the influence of the electric field, as depicted in equation (13):…”

Investigating Bubble-Induced Overpotential, Current Non-Uniformity, and Gas Cross-over in Flow-based Water Electrolyzers: A Numerical Study

“…The diameter of the gas bubble is D 0 = 1.0 and the dimensions of the geometry are 5D 0 × 5D 0 . The analytical electric field intensity for this problem in cylindrical coordinates is given as follows [37]:…”