Dataset of single bubble growth and detachment during nucleate pool boiling in liquid oxygen

This dataset, Dataset of single bubble growth and detachment during nucleate pool boiling in liquid oxygen, was generated to study bubble detachment dynamics in cryogenic pool boiling under variable gravity conditions. Bubble departure diameter and frequency are jointly influenced by wall superheat, liquid subcooling, pressure, and gravity, with the critical Bond number at departure remaining independent of gravity. Experiments were conducted with liquid oxygen as the working fluid under both normal gravity and magnetically compensated microgravity, using a high-speed imaging system. Wall and bulk liquid temperatures were measured with sensors, and uncertainties were quantified. Each condition was repeated three times, and mean values with standard deviations are provided. The dataset contains time-resolved measurements of bubble departure diameter and frequency, associated operating conditions, and dimensionless parameters. The results reveal that under microgravity, bubbles grow for longer periods and reach larger diameters. Force balance analysis confirms that buoyancy and inertia jointly drive detachment, with buoyancy playing the stronger role. A key outcome is the verification that departure diameter scales as Dd~g^-1/2, while an empirical model incorporating gravity, wall superheat, subcooling, and pressure provides improved prediction accuracy for departure frequency compared with previous correlations. This dataset offers a valuable experimental basis for validating models of cryogenic boiling and can be used to benchmark empirical correlations, test numerical simulations, and support the design of heat transfer systems for space applications.