Three-dimensional MHD Mixed Convection Casson Fluid Flow over an Exponential Stretching Sheet with the Effect of Heat Generation

2016 ◽  
Vol 19 (6) ◽  
pp. 1-8 ◽  
Author(s):  
Kankanala Sharada ◽  
B Shankar
2019 ◽  
Vol 15 (2) ◽  
pp. 398-417 ◽  
Author(s):  
Subrata Das ◽  
Hiranmoy Mondal ◽  
Prabir Kumar Kundu ◽  
Precious Sibanda

PurposeThe focus of the paper is only on the contributions toward the use of entropy generation of non-Newtonian Casson fluid over an exponential stretching sheet. The purpose of this paper is to investigate the entropy generation and homogeneous–heterogeneous reaction. Velocity and thermal slips are considered instead of no-slip conditions at the boundary.Design/methodology/approachBasic equations in form of partial differential equations are converted into a system of ordinary differential equations and then solved using the spectral quasi-linearization method (SQLM).FindingsThe validity of the model is established using error analysis. Variation of the velocity, temperature, concentration profiles and entropy generation against some of the governing parameters are presented graphically. It is to be noted that the increase in entropy generation due to increase in heterogeneous reaction parameter is due to the increase in heat transfer irreversibility. It is further noted that the Bejan number decreases with Brinkman number because increase in Brinkman number reduces the total entropy generation.Originality/valueThis paper acquires realistic numerical explanations for rapidly convergent temperature and concentration profiles using the SQLM. Convergence of the numerical solutions was monitored using the residual error of the PDEs. The resulting equations are then integrated using the SQLM. The influence of emergent flow, heat and mass transfer parameters effects are shown graphically.


2013 ◽  
Vol 52 (4) ◽  
pp. 577-582 ◽  
Author(s):  
S. Nadeem ◽  
Rizwan Ul Haq ◽  
Noreen Sher Akbar ◽  
Z.H. Khan

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