AUTHOR=Rashid I. , Zubair T. , Asjad M. I. , Awrejcewicz J. 

TITLE=Entropy generation investigation of MHD Ag– and Au–H2O nanofluid above an exponential porous stretchable surface with thermal radiation and stagnation point flow

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.1009044

DOI=10.3389/fenrg.2022.1009044

ISSN=2296-598X

ABSTRACT=The current study presents an entropy generation investigation of magnetohydrodynamic Ag- and Au-H_2O nanofluid flows induced by an exponential stretchable sheet implanted in a porous media accompanying suction/injection and heat radiation impact. Moreover, the stagnation point flow, silver, and gold nanoparticles are considered. The consequences of ohmic heating and thermal radiation are also included as part of the heat transport examination. A physical process is transformed into a set of mathematical expressions using mathematical concepts, which can then be further simplified by using the necessary variables. Considering numerous physiological factors of interest, exact solutions for velocity and temperature profiles are calculated using similarity solution and Kummer's function method. The impact of different physical entities on the velocity field, temperature distribution, and entropy inception is investigated through graphs and numerical tables. It is noted that enhancing the values of $\Omega$ reduces the entropy inception. It is observed that the entropy inception field gains due to an increment in Ec_{rt}.