Direct matching between the flow factor approach model and molecular dynamics simulation for nanochannel flows.

Area of Science:

• Fluid dynamics
• Nanotechnology
• Computational physics

Background:

• Mathematical modeling of nanochannel flows presents significant challenges.
• Accurate simulation of fluid behavior at the nanoscale is crucial for various applications.

Purpose of the Study:

• To validate the flow factor approach model (FFAM) for nanochannel flows using data from molecular dynamics simulation (MDS).
• To assess the accuracy of FFAM in predicting flow velocity profiles under different nanochannel conditions.

Main Methods:

• Extracted characteristic parameters from molecular dynamics simulations (MDS).
• Inputted MDS-derived parameters directly into the closed-form explicit flow factor approach model (FFAM).
• Compared flow velocity profiles obtained from MDS and FFAM for nano slit channels with varying heights and liquid-wall interactions.

Main Results:

• FFAM, when incorporating an equivalent value [Formula: see text], demonstrated fair agreement with MDS results.
• The physical representation in FFAM was consistent with the simulated system in MDS.
• FFAM proved effective across different nanochannel configurations.

Conclusions:

• The flow factor approach model (FFAM) is a valuable tool for simulating nanochannel flows.
• Integrating MDS data enhances the predictive capability of FFAM for nanoscale fluid dynamics.