Abstract
This research discusses the fundamental liquid flow characteristics in carbon nanotubes (CNTs). The liquid argon flows through CNTs of (6,6)-(160,160) at T=121[K] and ρ_b=1344.3[kg/m^3] are simulated by themolecular dynamics (MD) method. To fit the velocity plot points obtained by the MD, the momentum equation is considered and solved by the finite difference method using the simulated density distributions. The theoretically reasonable velocity fitting lines are given. Using these velocity profiles, it is found that the slip length and the flow rate enhancement have obvious three transitional ranges, between (6,6)-(8,8), (9,9)-(10,10) and (14,14)-(17,17) before flow characteristics converge to the bulk flow ones.
