Abstract
The appropriate utilization of entropy generation may provoke dipping losses in the available energy of nanofluid flow. The effects of chemical entropy generation in axisymmetric flow of Casson nanofluid between radiative stretching disks in the presence of thermal radiation, chemical reaction, and heat absorption/generation features have been mathematically modeled and simulated via interaction of slip boundary conditions. Shooting method has been employed to numerically solve dimensionless form of the governing equations, including expressions referring to entropy generation. The impacts of the physical parameters on fluid velocity components, temperature and concentration profiles, and entropy generation number are presented. Simulation results revealed that axial component of velocity decreases with variation of Casson fluid parameter. A declining variation in Bejan number was noticed with increment of Casson fluid constant. Moreover, a progressive variation in Bejan number resulted due to the impact of Prandtl number and stretching ratio constant.
Highlights
Engineering systems’ efficiency decreases in the presence of irreversibilities
Hashmi et al [5] developed a mathematical model for Oldroyd-B confined by isothermal stretching disks, featuring mixed convection and chemical reaction consequences
Keeping such motivations in mind, the present investigation presents the effects of entropy generation in flow of Casson nanofluid induced by stretching disks
Summary
Engineering systems’ efficiency decreases in the presence of irreversibilities. Heat transfer and fluid flow are irreversible processes and their irreversibility may be articulated in terms of entropy generation. Sheikholeslami et al [23] studied the significance of nanoparticles for convective flow in porous chambers impacted with thermal radiation and magnetic force Another investigation based on utilization of nano-materials in a baffled U-shaped enclosure was numerically simulated by Ma et al [24]. Arikoglu et al [40] investigated the entropy generation features in slip flow of viscous fluid due to rotating disk. The utilization of entropy generation enables the minimization of available energy loss of performance systems Keeping such motivations in mind, the present investigation presents the effects of entropy generation in flow of Casson nanofluid induced by stretching disks. After carefully examining the above cited work, we note that entropy generation features in thermally developed flow of Casson nanofluid induced by two porous stretching disks have not been reported yet. Different flow parameters are graphically impacted with relevant physical significant
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