Numerical investigation of quasi-static bubble growth and detachment from submerged orifices in isothermal liquid pools: The effect of varying fluid properties and gravity levels

摘要: The present investigation, identifies the exact quantitative effects of fundamental parameters, on detachment characteristics isolated bubbles, emanating quasi-statically from submerged orifices into isothermal liquid pools. For this purpose, a Volume Fluid (VOF) based interface capturing approach is further improved, for conduction axisymmetric and 3D numerical experiments adiabatic bubble growth dynamics. predictions model, are quantitatively validated against literature available experimental data, showing excellent agreement. Two series performed, exploring parametric phase properties in five different gravity levels, effect vector direction inclination angle, respectively. It found that characteristics, more sensitive variation surface tension, density gravity, while dynamic viscosity generally minimal. From dimensionless analysis, two correlations derived, which examined range Eotvos numbers, able to predict equivalent diameter time, also reduce significantly as gradually deviates being parallel injection orifice, following non-linear decrease.