Viscoelastic local dynamics of microtubes conveying fluid
Date
2018
Authors
Ghayesh, M.
Farajpour Ouderji, A.
Farokhi, H.
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Journal Title
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Conference paper
Citation
Proceedings of the 21st Australasian Fluid Mechanics Conference (AFMC 2018), 2018, pp.1-4
Statement of Responsibility
Mergen H. Ghayesh, Ali Farajpour and Hamed Farokhi
Conference Name
21st Australasian Fluid Mechanics Conference (10 Dec 2018 - 13 Dec 2018 : Adelaide, Australia)
Abstract
In the present study, a nonlinear coupled scale-dependent continuum model is developed to examine the local dynamics of a pulsatile fluid-conveying microscale tube. The effect of the internal energy loss is described by the Kelvin-Voigt model of viscoelasticity. Parametric forces due to the pulsatile flow as well as Coriolis forces are taken into consideration in the nonlinear scale-dependent model. The Euler-Bernoulli beam theory is utilised for describing the deformation behaviour while scale effects are captured via the modified version of the theory of couple stress. Then, Hamilton’s principle is utilised so as to derive the differential equations of the pulsatile fluidconveying microscale tube. The local dynamic characteristics are determined near the parametric resonance of the viscoelastic microscale system in the supercritical regime.
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Commencing with 19AFMC, the Society holds copyright to papers which appear in the Proceedings. Prior to that, copyright resides with authors of the papers.