335547 Impact of Nano-Drops On Solid Surfaces

Monday, November 4, 2013
Continental 6 (Hilton)
Joel Koplik1, Rui Zhang2, Sameneh Farokhirad3 and Taehun Lee4, (1)Department of Physics / Levich Institute, City College of the City University of New York, New York, NY, (2)Physics, CCNY, New York, NY, (3)Mechanical engineering, City College of New York, New York, NY, (4)Mechanical Engineering, The City College of City University of New York, New York, NY

The impact of nanometer-sized drops on solid surfaces is studied
by molecular dynamics computer simulations.  Volatile and non-volatile
drops of pure liquid, surfactant solutions, and "liquid marble"
drops consisting of particulate suspensions are considered.  The
simulation protocol is to equilibrate a drop made of short chains
of Lennard-Jones atoms, with or without added surfactant (longer
amphiphilic chains) or rigid solid (atomistic) particles, and direct
them towards a solid substrate lattice.  At high impact velocities
we focus on the transition to splashing and comparison with the
behavior of laboratory-sized drops.  At lower velocities we address
the effects of solid surface texture and wettability, and compare
the results to lattice Boltzmann calculations for continuum drops.

Extended Abstract: File Not Uploaded
See more of this Session: Poster Session: Fluid Mechanics (Area 1j)
See more of this Group/Topical: Engineering Sciences and Fundamentals