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Related Experiment Videos

Method for determining the shear stress in cylindrical systems.

Owen G Jepps1, Suresh K Bhatia

  • 1Department of Chemical Engineering, University of Queensland, Brisbane Qld 4076, Australia. o.jepps@mailbox.uq.edu.au

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|June 6, 2003
PubMed
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We present a new method to calculate pressure tensor components in cylindrical systems, similar to the method of planes. This technique helps analyze shear stress in confined fluid flow simulations.

Area of Science:

  • Physics
  • Chemical Engineering
  • Materials Science

Background:

  • Understanding transport phenomena in confined systems is crucial for various applications.
  • Accurate determination of the pressure tensor is essential for analyzing fluid behavior under confinement.
  • Existing methods for pressure tensor calculation are often limited to planar systems.

Purpose of the Study:

  • To develop a novel method for calculating pressure tensor elements in cylindrically symmetric systems.
  • To adapt the established 'method of planes' for cylindrical geometries.
  • To investigate the radial shear stress in confined fluid flow using molecular dynamics.

Main Methods:

  • Developed a new method analogous to the 'method of planes' for cylindrical systems.

Related Experiment Videos

  • Applied the method to molecular dynamics simulations of methane flow in silica mesopores.
  • Focused on determining pressure tensor components at a specific radius 'r'.

    • Main Results:

    • Successfully determined the elements of the pressure tensor at radius 'r' in a cylindrically symmetric system.
    • Quantified the radial shear stress dependence during the forced flow of methane.
    • Demonstrated the method's utility in analyzing transport in confined geometries.

    Conclusions:

    • The developed method provides a valuable tool for analyzing pressure tensor components in cylindrical systems.
    • This approach facilitates the examination of constitutive relations for transport phenomena in confined environments.
    • The findings are applicable to understanding fluid behavior in nanoporous materials.