Physics – Fluid Dynamics
Scientific paper
2010-10-15
Physics
Fluid Dynamics
there are videos included
Scientific paper
Droplet(s) breakup and coalescence have been simulated by the finite volume/moving mesh interface tracking method (MMIT) with adaptive mesh refining and coarsening. In this method, the interface is zero-thickness and moves in a Lagrangian fashion. The breakup and the coalescence of the interfaces are simulated by the mesh separation and mesh combination schemes. Three cases are displayed in this video, which include the relaxation and breakup of an initially extended droplet, two identical droplets off-center collision, and a droplet pair in a shear flow. The mesh adaptation is capable of capturing large deformations and thin regions, and the smallest length resolved is three orders of magnitude smaller than the droplet radius. The fluid dynamics videos of the simulations are to be presented in the Gallery of Fluid Motion, 2010.
Lou Jing
Quan Shaoping
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