MATEC Web of Conferences (Jan 2019)

Flow behavior analysis of confined fluid in a flexible tube: application of asymptotic approach

  • Mehdari A.,
  • Agouzoul M.,
  • Hasnaoui M.

DOI
https://doi.org/10.1051/matecconf/201928609004
Journal volume & issue
Vol. 286
p. 09004

Abstract

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In this paper, we asymptotically investigate a confined fluid flow in a flexible tube with a variable section. The fluid is considered to be newtonian, incompressible and it elapses in elastic and isotropic shell. This study provides a review of recent analysing the effects of the elastic wall tube properties over the fluid behaviour. The unsteady fluid flow will be analysed following the singular perturbations theory according to a large Reynolds number and a small aspect radio. The wall is assumed to be a thin shell that generate a small axisymmetric vibration. This model is mathematically developed by using the thin shell linear theory that is governed by a geodesic curvature parameter.

Keywords