TY - JOUR
ID - 21395
TI - Novel aspects of Soret and Dufour in entropy generation minimization for Williamson fluid flow
JO - Scientia Iranica
JA - SCI
LA - en
SN - 1026-3098
AU - Hayat, T.
AU - Masood, F.
AU - Qayyum, S.
AU - Ijaz Khan, M.
AU - Alsaedi, A.
AD - Department of Mathematics, Quaid-I-Azam University 45320, Islamabad 44000, Pakistan.;
Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
AD - Department of Mathematics, Quaid-I-Azam University 45320, Islamabad 44000, Pakistan.
AD - Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
Y1 - 2020
PY - 2020
VL - 27
IS - 5
SP - 2451
EP - 2464
KW - Williamson fluid
KW - Rotating disks
KW - Activation energy
KW - viscous dissipation
KW - entropy generation
KW - Soret and Dufour effects
KW - stratification
DO - 10.24200/sci.2019.52553.2772
N2 - Soret and Dufour effects on MHD flow of Williamson fluid between two rotating disks are examined. Impacts of stratification, viscous dissipation and activation energy are also considered. Bejan number and entropy generation for stratified flow is discussed. The governing PDE's are converted into ODE's by using Von Kármán transformations. Convergent solution of complicated ODE's is found by homotopic procedure. The results of physical quantities are discussed through plots and numerical values. It is noted that axial and radial velocities are more for greater Weissenberg number. Temperature and concentration profiles are decreasing functions of thermal and solutal stratification parameters respectively. Entropy and Bejan number show the opposite trends for higher Weissenberg number and Brinkman number.
UR - http://scientiairanica.sharif.edu/article_21395.html
L1 - http://scientiairanica.sharif.edu/article_21395_f1d32dd3782552510a906219345dd987.pdf
ER -