INVESTIGATING FOR SEPARATION ABILITY OF NANOSCALE LIQUID JETS FROM METAL PLATE WITH THE DIFERENT HOLE DIAMETERS

Abstract

In order to investigate for the separation ability of nanoscale liquid jets from the metal plate with the different hole diameters, the molecular dynamics method is used to simulate for the fluid nanojet ejection process through the different hole diameters. The compersition of simulation equipment diagram includes the circle hole at the center of the upper plate, the push plate at the equipment bottom and the fluid moleculars at the between of two plate. The LAMMPS software and C++ code are used for simulating and analysis the data. The simulation result shows that the hole diameters of 27.5 Å or smaller which almost all of nanofluid molecular eject out to form the jet but this jet cannot separate from the upper plate surface under any push force on the bottom plate. However, when increasing the hole diameter wich the nanofluid jet separates out from the upper plate surface. Through this research, we have a deep and clear sights about the ejection process dynamic of nanofluid.