Abstract
Bubble nucleation phenomenon in presence of gas impurities is studied by microcanonical molecular dynamics simulation for Lennard-Jones fluid. First, we investigate effect of molecular diameter of dissolved gas on the nucleation rate with pressure change. As a result, we find increase of the nucleation rate with increase of the pressure, which we call “inverse” pressure phenomenon, when interaction of dissolved gas is very weak. In this case, we confirm that a gas with the larger diameter enhances composition fluctuation or phase separation. Next, we estimate effect of the diameter on spinodal point through calculation of equation of state (EOS), and confirm that effect of the diameter on spinodal point at low temperature range becomes larger as the interaction of dissolved gas becomes weaker. Finally, we examine applicability of the superheat ratio expressed by saturation pressure and spinodal pressure, and confirm its validity to explain the inverse change of the nucleation rate.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.