Nano bubbles in liquid of a noble-gas mixture

Abstract

Large-scale molecular dynamics (MD) simulations with over one million atoms are used to investigate nano bubbles in Ar–Ne liquid. The simulations demonstrate cavitations in the stretched liquid, and bubble creation and collapse. We find that a small cavity created in the stretched liquid spontaneously transforms into a nano bubble with the homogeneous vapor region. The equilibrium spherical bubble of 11.4 nm in radius is obtained after the long-time MD run. The surface tension of the nano bubble is found to be larger than that of the flat surface.