Numerical Study Of Surface Tension Effects On Bubble Detachment In A Submerged Needle
Price
Free (open access)
Transaction
Volume
89
Pages
10
Page Range
77 - 86
Published
2015
Size
493 kb
Paper DOI
10.2495/MPF150071
Copyright
WIT Press
Author(s)
J. Eshraghi, E. Kosari, P. Hadikhani, A. Amini, M. Ashjaee, P. Hanafizadeh
Abstract
This paper analyses adiabatic gas bubble formation, growth, and detachment which are produced from a submerged needle in water with the aim of elucidating the impact of surface tension on bubble properties. A simulation model is utilized to enable examination of the problem for the mentioned parameter. The numerical results are compared with experimental observations on the bubble for validation purposes. The simulation results, including changes in bubble properties during the process, are recorded and a comprehensive research for different surface tensions is applied to understand the effect of this parameter on the bubble. It is found that higher surface tension between gas and water results in larger bubbles right before the departure occurs.
Keywords
bubble formation and growth, experimental observations, simulation model, surface tension