Korea-Australia Rheology Journal, Volume (27), No (3), Year (2015-8) , Pages (213-225)

Title : ( Numerical study of vortex shedding in viscoelastic flow past an uncon )

Authors: Mohammad Norouzi , Seyed Rasoul Varedi , mahdi zamani ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract

In this paper, the periodic viscoelastic shedding flow of Giesekus fluid past an unconfined square cylinder is investigated numerically for the first time. The global quantities such as lift coefficient, Strouhal number and the detailed kinetic and kinematic variables like normal stress differences and streamlines have been obtained in order to investigate the flow pattern of viscoelastic flow. The effects of Reynolds number and polymer concentrations have been clarified in the periodic viscoelastic flow regime. Our particular interest is the effect of mobility parameter on the stability of two dimensional viscoelastic flows past an unconfined square cylinder. To fulfill this aim, the mobility parameter has been increased from 0 to 0.5 for different polymer concentrations. Results reveal that mobility factor noticeably affects the amplitude of lift coefficient and shedding frequency more strongly at higher polymer concentrations.

Keywords

, square cylinder, vortex shedding, viscoelastic flow, mobility factor, polymer concentration
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1057189,
author = {Mohammad Norouzi and Seyed Rasoul Varedi and Zamani, Mahdi},
title = {Numerical study of vortex shedding in viscoelastic flow past an uncon},
journal = {Korea-Australia Rheology Journal},
year = {2015},
volume = {27},
number = {3},
month = {August},
issn = {1226-119x},
pages = {213--225},
numpages = {12},
keywords = {square cylinder; vortex shedding; viscoelastic flow; mobility factor; polymer concentration},
}

[Download]

%0 Journal Article
%T Numerical study of vortex shedding in viscoelastic flow past an uncon
%A Mohammad Norouzi
%A Seyed Rasoul Varedi
%A Zamani, Mahdi
%J Korea-Australia Rheology Journal
%@ 1226-119x
%D 2015

[Download]