Analysis of second law on Eyring‐Powell nanoliquid flow in a vertical microchannel considering magnetic field and convective boundary

Abstract

Studies related to enhancing heat transfer has attained much attention of researchers to avail optimized heat-transfer devices. High viscous fluids are of great importance as they are widely used in petroleum products, organic chemistry, coating, printing, and so forth. In this study, heat transfer mechanism driven by Eyring-Powell nanoliquid flow in a vertical microchannel is examined. Impact of considering buoyancy force, magnetic field, and convective boundary on the thermal system is demonstrated. The modeled nondimensional equations are computed by using the Runge-Kutta-Fehlberg method. The vital roles of thermophoresis and Brownian motion are discussed in detail. The significance of second law analysis for thermal systems is presented. The causes of irreversibilities in a microchannel due to Eyring-Powell nanoliquid flow is also demonstrated in the current research study. The upshots of the current investigations are visualized through graphical elucidation. It is established that minimization of entropy generation can be achieved by enhancing the mechanism of thermophoresis. The convective boundary helps in transmitting heat from the thermal system to the ambience hence the lower thermal field is attained.

Effects of nonlinear thermal radiation on magnetized Al2O3${\rm Al}_2 {\rm O}_3$‐Blood${\rm Blood}$ nanofluid flow through an inclined microporous channel: An investigation of second law analysis

“…Sindhu et al. [11] examined the flow of Eyring–Powell nanofluid in a vertical microchannel under the influence of a magnetic field with convective boundary conditions. Researchers such as Arabpour et al.…”

“…To bring about quadratic convection in dusty Casson and Carreau fluids, Mahanthesh et al [10] utilized a variety of physical phenomena, including convective heating, heat generation, and radiation. Sindhu et al [11] examined the flow of Eyring-Powell nanofluid in a vertical microchannel under the influence of a magnetic field with convective boundary conditions. Researchers such as Arabpour et al [12] and Choi et al [13] have discussed how fluid flow works in microchannels in this direction.…”

Magnetohydrodynamic flow of a micropolar nanofluid in association with Brownian motion and thermophoresis: Irreversibility analysis

“…Li et al 33 analyzed entropy produced for the cavitating flow using the shear stress transport $$k \mbox{-} \omega $$ turbulence model. Sindhu and Gireesha 34 investigated the second law on Eyring–Powell nanoliquid flowing within a vertically placed microchannel by modeling the equations using a magnetic field and convective boundary. Felicita et al 35 looked into the third‐grade fluid flowing in a microchannel and investigated the entropy formed during the flow.…”

Heat transfer and irreversibility rate in MHD flow of a hybrid nanofluid with Newton boundary condition, slip flow, and nonlinear thermal radiation

“…The dependence of fluid flow in a double-layered channel on slip boundary conditions has been observed by Abedin et al 30 Mohamed et al 31,32 examined the discrepancy of thermal energy and momentum of the different nanofluids with convective and slip boundary conditions. Gireesha et al 33,34 investigated the second law analysis of a nanofluid and Casson fluid flow in a microchannel in which convective boundary conditions have been considered.…”