Journal of Non-Newtonian Fluid Mechanics, ( ISI ), Volume (197), No (1), Year (2013-1) , Pages (31-40)

Title : ( Numerical investigation of viscoelastic shedding flow behind a circular cylinder )

Authors: M. Norouzi , S.R. Varedi , Mohammad Javad Maghrebi , M.M. Shahmardan ,

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Abstract

The numerical simulation of time-dependent two-dimensional inertial viscoelastic flows around a circular cylinder is investigated. The simulation is performed by employing a second order parallelized finite volume method (FVM) in both spatial and the temporal domain. Giesekus model is used as a non-linear rheological constitutive equation. The numerical results of inertial viscoelastic flow behind a circular cylinder illustrate the significant effect of the fluid elasticity on the flow structure. The impact of the elasticity on the recirculation region and shedding frequency are discussed. Also, the effects of mobility factor on the shedding frequency of two-dimensional viscoelastic flows past a confined cylinder are studied. The results reveal that enhancing the mobility factor causes a noticeable increase in the vortex shedding frequency and flow instability. 

Keywords

, Giesekus Viscoelastic Numerical simulation Shedding Time, dependent Mobility factor
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@article{paperid:1035505,
author = {M. Norouzi and S.R. Varedi and Maghrebi, Mohammad Javad and M.M. Shahmardan},
title = {Numerical investigation of viscoelastic shedding flow behind a circular cylinder},
journal = {Journal of Non-Newtonian Fluid Mechanics},
year = {2013},
volume = {197},
number = {1},
month = {January},
issn = {0377-0257},
pages = {31--40},
numpages = {9},
keywords = {Giesekus Viscoelastic Numerical simulation Shedding Time-dependent Mobility factor},
}

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%0 Journal Article
%T Numerical investigation of viscoelastic shedding flow behind a circular cylinder
%A M. Norouzi
%A S.R. Varedi
%A Maghrebi, Mohammad Javad
%A M.M. Shahmardan
%J Journal of Non-Newtonian Fluid Mechanics
%@ 0377-0257
%D 2013

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