Kinetic resistance of carbon nanotubes in aqueous solution

By using the molecular dynamics (MD) method, the deceleration of (5,5), (7,7), (10,10) and (5,5)/(10,10) carbon nanotubes is first simulated in aqueous solution; their curves of resistance/velocity and resistance/Reynolds (Re) number are also obtained; then the MD results are compared with the macroscopic fluid dynamics (FD) ones of circular cylinder in aqueous solution for low Re numbers. It is shown that, in aqueous solution, the kinetic resistance of the carbon tubes only rests with their Re number, that, under the low Re numbers, the resistance of the carbon tubes in aqueous solution is higher than the macroscopic FD results by several ten times, and that the kinetic resistance of carbon tubes can be estimated through the macroscopic FD results multiplied by (17.17/0.19 Re).