TY - JOUR
ID - 534967
TI - Development of Boundary Layer of Highly Elastic Flow of the Upper Convected Maxwell Fluid over a Stretching Sheet
JO - ADMT Journal
JA - ADMT
LA - en
SN - 2252-0406
AU - Mohamadali, Meysam
AU - Ashrafi, Nariman
AD - Department of Mechanical and Aerospace Engineering,
Science and Research Branch, Islamic Azad University, Tehran, Iran
Y1 - 2016
PY - 2016
VL - 9
IS - 2
SP - 35
EP - 44
KW - Boundary layer
KW - High weissenberg flow
KW - Nonlinear viscoelastic fluid
KW - Similarity solution
DO -
N2 - High Weissenberg boundary layer flow of viscoelastic fluids on a stretching surface has been studied. The flow is considered to be steady and two dimensional. Flows of viscoelastic liquids at high Weissenberg number exhibit stress boundary layers near walls. These boundary layers are caused by the memory of the fluid. Upon proper scaling and by means of an exact similarity transformation, the non-linear momentum and constitutive equations of each layer transform into the respective system of highly nonlinear and coupled ordinary differential equations. Effects of variation in pressure gradient and Weissenberg number on velocity profile and stress components are investigated. It is observed that the value of stress components decrease by Weissenberg number. Moreover, the results show that increasing the pressure gradient results in thicker velocity boundary layer. It is observed that unlike the Newtonian flows, in order to maintain a potential flow, normal stresses must inevitably develop in far fields.
UR - http://admt.iaumajlesi.ac.ir/article_534967.html
L1 - http://admt.iaumajlesi.ac.ir/article_534967_3b32ac425be0e3a17bce9f9f85d07df1.pdf
ER -