Entropy Generation Due to MHD Stagnation Point Flow of a Nanofluid on a Stretching Surface in the Presence of Radiation

2018 ◽  
Vol 7 (5) ◽  
pp. 879-890 ◽  
Author(s):  
I. Tlili ◽  
W. A. Khan ◽  
K. Ramadan
Keyword(s):  
Stagnation Point ◽  
Entropy Generation ◽  
Stagnation Point Flow ◽  
Stretching Surface

scholarly journals Entropy Generation Analysis for Stagnation Point Flow in a Porous Medium over a Permeable Stretching Surface

2015 ◽  
Vol 8 (4) ◽  
pp. 753-765 ◽  
Author(s):  
M.M. Rashidi ◽  
F. Mohammadi ◽  
S. Abbasbandy ◽  
Mohammed S. Alhuthali ◽  
◽  
...  
Keyword(s):  
Porous Medium ◽  
Stagnation Point ◽  
Entropy Generation ◽  
Stagnation Point Flow ◽  
Stretching Surface

scholarly journals Dual Solution of MHD Stagnation-Point Flow towards a Stretching Surface

Engineering ◽  
2010 ◽  
Vol 02 (04) ◽  
pp. 299-305 ◽  
Author(s):  
Tapas R. Mahapatra ◽  
Samir K. Nandy ◽  
Anadi S. Gupta
Keyword(s):  
Stagnation Point ◽  
Stagnation Point Flow ◽  
Dual Solution ◽  
Stretching Surface

scholarly journals Unsteady electromagnetic radiative nanofluid stagnation-point flow from a stretching sheet with chemically reactive nanoparticles, Stefan blowing effect and entropy generation

2018 ◽  
Vol 232 (2-3) ◽  
pp. 69-82 ◽  
Author(s):  
Puneet Rana ◽  
Nisha Shukla ◽  
O Anwar Bég ◽  
A Kadir ◽  
Bani Singh
Keyword(s):  
Magnetic Field ◽  
Stagnation Point ◽  
Entropy Generation ◽  
Stretching Sheet ◽  
Nonlinear Partial Differential Equations ◽  
Stagnation Point Flow ◽  
Dimensional System ◽  
Electrical Field ◽  
Electric Parameter ◽  
Entropy Generation Number

This article investigates the combined influence of nonlinear radiation, Stefan blowing and chemical reactions on unsteady electro-magneto-hydrodynamic stagnation-point flow of a nanofluid from a horizontal stretching sheet. Both electrical and magnetic body forces are considered. In addition, the effects of velocity slip, thermal slip and mass slip are considered at the boundaries. An analytical method named as homotopy analysis method is applied to solve the non-dimensional system of nonlinear partial differential equations which are obtained by applying similarity transformations on governing equations. The effects of emerging parameters such as Stefan blowing parameter, electric parameter and magnetic parameter on the important physical quantities are presented graphically. In addition, an entropy generation analysis is provided in this article for thermal optimization. The flow is observed to be accelerated both with increasing magnetic field and electrical field. Entropy generation number is markedly enhanced with greater magnetic field, electrical field and Reynolds number, whereas it is reduced with increasing chemical reaction parameter.

scholarly journals Entropy Generation and Dual Solutions in Mixed Convection Stagnation Point Flow of Micropolar Ti6Al4V Nanoparticle along a Riga Surface

Processes ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 14 ◽  
Author(s):  
A. Zaib ◽  
Umair Khan ◽  
Ilyas Khan ◽  
Asiful H. H. Seikh ◽  
El-Sayed M. M. Sherif
Keyword(s):  
Stagnation Point ◽  
Entropy Generation ◽  
Liquid Velocity ◽  
Current Model ◽  
Dual Solutions ◽  
Stagnation Point Flow ◽  
Complex Nature ◽  
Dual Nature ◽  
Riga Plate ◽  
The Impact

Entropy generation and dual solutions are rarely studied in the literature. An analysis is attempted here. More exactly, the present paper looks at the impact of radiation of a micropolar fluid on mixed convective flow containing the titanium alloy Ti6Al4V nanoparticle along with a Riga plate. The study of dual-nature solution for the entropy generation along a Riga surface was not being explored in the literature; therefore, the current model focuses on the dual solutions of this complex nature model. Riga surface is identified as an actuator of electromagnetic in which electrodes are accumulated alternatively. This array produces the behavior of electromagnetic hydrodynamic in the flow field. The transmuted leading equations were worked out through the formula of 3-stage Lobatto IIIA. Influences of exercising enormous parameters on temperature distribution, velocity, and micro rotation fields are portrayed and argued. More than one solution is achieved in opposing flow, while in the phenomenon of assisting flow result is unique. Moreover, due to the micropolar parameter, the separation of the boundary layer is decelerating. It is determined that the entire structure produces the dual-nature solution of the phenomenon of stagnation point flow, and the temperature profile behavior shows the significant enhancement in the thermal conductivity due to the addition of the nanoparticle. The results exposed that liquid velocity is enhanced, and micro rotation is decelerated, by improving the values of Hartmann numbers in both solutions, whereas the temperature field is decelerated in the first solution and accelerated in the second solution.

scholarly journals Dual solutions of stagnation-point flow of a nanofluid over a stretching surface

2013 ◽  
Vol 2013 (1) ◽  
pp. 188 ◽  
Author(s):  
Peri K Kameswaran ◽  
Precious Sibanda ◽  
Chetteti RamReddy ◽  
Prabhala VSN Murthy
Keyword(s):  
Stagnation Point ◽  
Dual Solutions ◽  
Stagnation Point Flow ◽  
Stretching Surface
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