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Advances in Nano Research
  Volume 12, Number 3, March 2022 , pages 253-261
DOI: https://doi.org/10.12989/anr.2022.12.3.253
 


Fluid flow dynamics in deformed carbon nanotubes with unaffected cross section
Mohammad Rezaee, Arian Yeganegi, Mohammad Namvarpour and Hojat Ghassemi

 
Abstract
    Numerical modelling of an integrated Carbon NanoTube (CNT) membrane is only achievable if probable deformations and realistic alterations from a perfect CNT membrane are taken into account. Considering the possible forms of CNTs, bending is one of the most probable deformations in these high aspect ratio nanostructures. Hence, investigation of effect associated with bent CNTs are of great interest. In the present study, molecular dynamics simulation is utilized to investigate fluid flow dynamics in deformed CNT membranes, specifically when the tube cross section is not affected. Bending in armchair (5,5) CNT was simulated using Tersoff potential, prior to flow rate investigation. Also, to study effect of inclined entry of the CNT to the membrane wall, argon flow through generated inclined CNT membranes is examined. The results show significant variation in both cases, which can be interpreted as counter-intuitive, since the cross section of the CNT was not deformed in either case. The distribution of fluid-fluid and fluid-wall interaction potential is investigated to explain the anomalous behavior of the flow rate versus bending angle.
 
Key Words
    carbon nanotube; desalination graphene; flow rate; monatomic fluids
 
Address
Mohammad Rezaee, Arian Yeganegi, Mohammad Namvarpour and Hojat Ghassemi: School of Mechanical Engineering, Iran University of Science & Technology, Narmak, Tehran, Iran
 

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