Entropy generation and convective heat transfer of radiated non-Newtonian power-law fluid past an exponentially moving surface under slip effects

被引:53
作者
Saleem, S. [1 ]
Abd El-Aziz, Mohamed [1 ,2 ]
机构
[1] King Khalid Univ, Dept Math, Coll Sci, Abha 61413, Saudi Arabia
[2] Helwan Univ, Dept Math, Fac Sci, Helwan Cairo 11975, Egypt
关键词
BOUNDARY-LAYER-FLOW; MASS-TRANSFER; THERMAL-RADIATION; ROTATING CYLINDER; NANOFLUID FLOW; TRANSPORT; DISK; MHD;
D O I
10.1140/epjp/i2019-12656-4
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
.A numerical approach is adopted to explore the entropy analysis for combined convective radiated nonlinear power law fluid over an exponentially stretched plate. Both cases of shear thinning and shear thickening are presented. The physical problem gains more significance in the presence of slip and magnetic effects. Influences of related parameters are carried out by Runge-Kutta-Fehlberg method. The results show that both the momentum and thermal boundary layer thickness shrinks faster for shear thickening case. Entropy of the system augments with generalized Prandtl number. Reynolds number is responsible for lower Bejan number. Also, an augmentation of power-law index drops entropy generation.
引用
收藏
页数:14
相关论文
共 49 条
[1]   Effects of thermal buoyancy and variable thermal conductivity on the MHD flow and heat transfer in a power-law fluid past a vertical stretching sheet in the presence of a non-uniform heat source [J].
Abel, M. Subhols ;
Siddheshwar, P. G. ;
Mahesha, N. .
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS, 2009, 44 (01) :1-12
[2]  
Afridi M. I., 2018, INT J APPL COMPUT MA, DOI [10.1007/s40819-017-0454-x, DOI 10.1007/S40819-017-0454-X]
[3]   Second Law Analysis of Three Dimensional Dissipative Flow of Hybrid Nanofluid [J].
Afridi, Muhammad Idrees ;
Qasim, Muhammad ;
Saleem, Salman .
JOURNAL OF NANOFLUIDS, 2018, 7 (06) :1272-1280
[4]   Convective radiative plane Poiseuille flow of nanofluid through porous medium with slip: An application of Stefan blowing [J].
Alamri, Sultan Z. ;
Ellahi, R. ;
Shehzad, N. ;
Zeeshan, A. .
JOURNAL OF MOLECULAR LIQUIDS, 2019, 273 :292-304
[5]  
[Anonymous], J MAGN MAGN MAT
[6]  
[Anonymous], 2008, CREAT MATH INF
[7]   Entropy generation and unsteady Casson fluid flow squeezing between two parallel plates subject to Cattaneo-Christov heat and mass flux [J].
Atlas, M. ;
Hussain, S. ;
Sagheer, M. .
EUROPEAN PHYSICAL JOURNAL PLUS, 2019, 134 (01)
[8]  
Bejan A., 1982, Entropy generation through Heat and Fluid flow
[9]   Numerical study of unsteady Williamson fluid flow and heat transfer in the presence of MHD through a permeable stretching surface [J].
Bibi, Madiha ;
Khalil-Ur-Rehman ;
Malik, M. Y. ;
Tahir, M. .
EUROPEAN PHYSICAL JOURNAL PLUS, 2018, 133 (04) :1-15
[10]  
Butt AS, 2017, J NANOFLUIDS, V6, P379, DOI 10.1166/jon.2017.1325