Numerical simulation of entropy generation for nanofluid with the consequences of thermal radiation and Cattaneo-Christov heat flux model

Waqas, Hassan; Fida, Muzamil; Liu, Dong; Manzoor, Umair; Muhammad, Taseer

doi:10.1016/j.icheatmasstransfer.2022.106293

Cited by 53 publications

(8 citation statements)

References 41 publications

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“…The appropriate numerical method with accurate convergence must be used for the equations system. The numerical findings are obtained using a bvp4c MATLAB method 21 , 51 , 52 . Compared to other numerical approaches, the bvp4c methodology is more adaptable and allows for more precise control of approach criteria.…”

Section: Numerical Proceduresmentioning

confidence: 99%

“…Manjunath and Kaushik 50 reviewed research primarily based totally on second-regulation evaluation implemented to heaters. Subsequently, Waqas et al 51 develop a model of entropy technology for Casson nanofluid in the presence of convective boundary conditions. On the other hand, Farooq et al 52 investigated the impact of nonlinear thermal radiation in the nanofluid with entropy generation.…”

Section: Introductionmentioning

confidence: 99%

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Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Oweidi

Jamshed

Goud

et al. 2022

Sci Rep

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The formation of entropy in a mixed convection Casson nanofluid model with Arhenius activation energy is examined in this paper using magnetohydrodynamics (MHD). The expanding sheet, whose function of sheet velocity is nonlinear, confines the Casson nanofluid. The final equations, which are obtained from the first mathematical formulations, are solved using the MATLAB built-in solver bvp4c. Utilizing similarity conversion, ODEs are converted in their ultimate form. A number of graphs and tabulations are also provided to show the effects of important flow parameters on the results distribution. Slip parameter was shown to increase fluid temperature and decrease entropy formation. On the production of entropy, the Brinkman number and concentration gradient have opposing effects. In the presence of nanoparticles, the Eckert number effect's augmentation of fluid temperature is more significant. Furthermore, a satisfactory agreement is reached when the findings of the current study are compared to those of studies that have been published in the past.

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Section: Numerical Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Oweidi

Jamshed

Goud

et al. 2022

Sci Rep

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“…In contrast to the behaviour observed for Bejan numbers, which increases as entropy increases, the Brinkman number actually accelerates entropy production. Waqas et al (2022) explored a Casson nanofluid as an infinite-surface-permeable solar collector. Copper oxide-water, titanium dioxide-water and disulphide molybdenum-water nanofluids were studied.…”

Section: Introductionmentioning

confidence: 99%

Thermal transport in nanofluid across a radiated permeable sheet with irreversible effects based on the shape of the particles

Naseem

Shahzad

2023

HFF

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Purpose The purpose of this study is to examine the flow and heat transfer performance of titanium oxide/water and copper/water nanofluids with varying nanoparticle morphologies by considering magnetic, Joule heating and viscous dissipation effects. Furthermore, it studies the irreversibility caused by the flow of a hydromagnetic nanofluid past a radiated stretching sheet by considering different shapes of TiO2 and Cu nanoparticles with water as the base fluid. Design/methodology/approach In this study, the authors investigated entropy production in an unsteady two-dimensional magneto-hydrodynamic nanofluid regime using water as the base fluid and five unique TiO2 and Cu nanoparticle morphologies. Using appropriate similarity transformations, the controlling nonlinear system of partial differential equations is transformed into a system of ordinary differential equations. The shooting technique with Runge–Kutta method was then used to solve these equations quantitatively. The findings of this study are depicted graphically, and the skin friction corresponding to various nanoparticle geometries and physical parameter variations is tabulated. Findings To assess the reliability of the current findings, a tabular representation of the data was compared to that of previously published studies. It is noted that a reduction in thermal energy was detected as a result of the higher levels of Prandtl number (Pr). It is further analysed that the highest heat energy generation of TiO2 nanoparticles was larger than that of Cu nanoparticles. The most important finding was that the sphere-shaped Cu/H2O nanofluid had the lowest velocity and greatest temperature. Also, Cu nanoparticles in the shape of platelets generate the most entropy, while TiO2 nanoparticles in the shape of spheres generate the least. Originality/value To the best of the knowledge of the authors, the attempt to investigate the previously unexplored shape effects of TiO2 and Cu nanoparticles on the heat transfer enhancement and inherent irreversibility caused by hydromagnetic nanofluid flow past a radiated stretching sheet with magnetic, Joule heating and viscous dissipation effects. This study fills this gap in the existing literature and encourages scientists, engineers and businesses to do more research in this area. This model can be used to improve heat transfer in systems that use renewable energy, thermal management in industry and the processing of materials.

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“…Shah et al 43 examined the mathematical model of entropy generation over a stretchable Riga wall. A more recent study on entropy minimization can be seen in the references 44–47 …”

Section: Introductionmentioning

confidence: 99%

“…A more recent study on entropy minimization can be seen in the references. [44][45][46][47] The investigations cited above were not considering the vertical movement of the disk alongside rotation. Turkyilmazoglu, 48 motivated by the various technological applications of this feature, investigated Karman's flow for the case where a rotating disk admits upward/downward motion.…”

Section: Introductionmentioning

confidence: 99%

Entropy optimization analysis of Marangoni convective flow over a rotating disk moving vertically with an inclined magnetic field and nonuniform heat source

Kumar

Sharma

2022

Heat Trans

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The present study investigates the Marangoni convective fluid flow over a rotating disk with an inclined magnetic field and in the presence of a nonuniform heat source when the disk moves upward/downward with nonconstant velocity with the incorporation of the second law of thermodynamics. The Keller‐box method is applied to the reduced system of equations to draw graphical illustrations. The study of these illustrations to examine the effects of involved pertinent parameters, like, magnetic field, Marangoni number, angle of inclination, vertical disk movement parameter, heat source, and disk rotation, on velocity and temperature profiles, reveals some interesting findings. From the analysis, it can be concluded that the skin friction coefficient increases with more angle of inclination and the Marangoni number with the reverse trend in case of vertical disk movement. Also, the Marangoni number and vertical disk motion diminish the Nusselt number with a positive effect in the case of more angle of inclination. The rate of entropy generation is enhanced with the temperature ratio parameter while it diminishes with the inclined magnetic field of any strength. The current study in its reduced form is in excellent agreement with earlier published work to ensure the validity of the used numerical scheme.

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Numerical simulation of entropy generation for nanofluid with the consequences of thermal radiation and Cattaneo-Christov heat flux model

Cited by 53 publications

References 41 publications

Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Thermal transport in nanofluid across a radiated permeable sheet with irreversible effects based on the shape of the particles

Entropy optimization analysis of Marangoni convective flow over a rotating disk moving vertically with an inclined magnetic field and nonuniform heat source

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