Molecular dynamics research on micro-flow in a hydrophobic nano-channel

The full paper explains our molecular dynamics research mentioned in the title. Its core consists of: "Hydrophobic surfaces drag reduction is one of the hot research topics in the study of the underwater drag reduction currently. There are much of micro-and nano-scale structures on hydrophobic surfaces and the flow is a typical micro-flow. Inquiring into the feasibility of drag reduction studies on hydrophobic surface using the existing micro-flow theory and methods, we choose the micro-flow in hydrophobic nano-channel. Referring to the hydrophobic surface properties, we give a molecular dynamics simulation method, in which NVT is statistical ensemble and Lennard-Jones's potential energy function is used. The hydrophobic wall, which is assumed to be a rigid surface, is characterized by the correction factor in the potential energy function. In the calculation, velocity scaling method is used to keep the temperature constant and Verlet method is used to solve the Newton's equation. The results show that the density of the fluid surges in the hydrophobic nano-channel. Moreover, significant slip velocity is found near the wall. The simulation results, presented Figs. 8 through 11 and Table 2, are basically consistent with those of the relevant references, so this paper's simulation method is logical and valid.".