TY - JOUR JF - mdrsjrns JO - Modares Mechanical Engineering VL - 13 IS - 6 PY - 2013 Y1 - 2013/9/01 TI - Molecular Dynamics Simulation of Liquid Argon Flow in Nanochannels using Different Potential Functions TT - شبیه سازی دینامیک مولکولی جریان آرگون مایع درون نانو کانال با استفاده از تابع پتانسیل های مختلف N2 - In the present paper, Molecular Dynamics Simulation (MDS) is performed for Poiseuille flow of liquid Argon in a nanochannel by embedding the fluid particles in an external force with different potential functions. Three types of Lennard-Jones (LJ) potentials are used as interatomistic or molecular models for evaluations of interactions and density, velocity profiles across the channel are investigated. The interatomic potentials are LJ 12-6 potential, LJ 9-6 potential and LJ-Smooth potential. Density and velocity profiles across the channel are investigated. Obtained results show that hydrodynamic characteristics and behavior of flow depends on the type of interaction potential. It is shown that the LJ 9-6 predictions for velocity and temperature are larger than those of LJ12-6 and LJ-Smooth potentials. Also, applying LJ 9-6 results in further calculations time. The results show the effect of interaction force model on the understanding and analyzing of nanoscale flows. SP - 114 EP - 125 AU - aminfar, habib AU - Razmara, Nayyer AD - Tabriz university KW - Molecular dynamics simulation KW - Nanochannel KW - Poiseuille Flow KW - Lennard-Jones UR - http://mme.modares.ac.ir/article-15-1042-en.html ER -