  Homogeneous nucleation of a vapor bubble from a bulk metastable phase is
studied here for the first time using the multibody dissipative particle
dynamics model. The van der Waals equation of state is used to define a
conservative force that describes the model fluid used in this study.
Additional computational tools were developed to help visualize the vapor
bubble formed in the system. Continuum thermodynamic ideas are used to help
identify the bubble interface and separate particles that constitute the vapor
bubble and bulk liquid regions respectively. Using this idea, the density
variation is found to vary smoothly from the liquid to vapor regions in the
system. The square-gradient term that arises from the free energy expansion of
the density is found to have no significant effect on the radial local density
variation.
