Entropy generation analysis from the time-dependent quadratic combined convective flow with multiple diffusions and nonlinear thermal radiation

Patil, P.M.; Goudar, Bharath

doi:10.1016/j.cjche.2022.01.013

Cited by 11 publications

(5 citation statements)

References 42 publications

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“…Furthermore, Figure 5 depicts the impact of the large temperature difference; the quadratic thermal parameter has enhanced the heat transfer and consequently makes the fluid have a higher temperature. These outputs are coherent with the finding observed in [33,34]. When 𝜃 𝑤 is increased, convection due to buoyancy force provides more energy to the Carreau fluid flow.…”

Section: Resultssupporting

confidence: 88%

“…The quadratic approximation is practiced for sufficiently larger temperature variations as the term would also have a significant effect on heat transport. Therefore, one would get the quadratic thermal radiation flux as ( [33,34])…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…The semi-analytical solutions presented that the nonlinear heat radiation has a similar influence to the previous studies. [33] elucidated the significance of the nonlinear thermal radiation and triple quadratic diffusion convection on entropy generation of a viscous fluid flow through an upright cylinder. The authors observed that the heat transfer rate is boosted by around 18% for the nonlinear thermal radiation phenomenon as compared with the non-radiation condition.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Quadratic Thermal Radiation on Carreau Fluid Past a Melting Stretchable Cylinder

Jiann

Mohamad

Rawi

et al. 2023

Preprint

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The melting phenomenon plays a vital role in power storage, electronic cooling, and semiconductor manufacturing. A better understanding of the phenomenon may produce an electronic device with optimal performance. In the present study, the melting effect on the flow of Carreau fluid over a stretchable cylinder is analyzed. Since the temperature difference is huge, quadratic thermal radiation is considered to simulate the real situation. To solve the governing equations, suitable similarity variables are applied to convert the complex nonlinear partial equations into ordinary equations. Semi-analytical homotopic solutions of the equation are then determined using the homotopy analysis method. The melting parameter has increased the heat transfer rate by more than 10% for both Prandhl fluids. As the temperature ratio due to the quadratic radiation increase, the local Nusselt number for the fluid with a Prandtl number, 0.71 has been reduced by 25%, and more reduction is observed for fluid with a Prandtl number, 10.

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Section: Resultssupporting

confidence: 88%

Section: Mathematical Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of Quadratic Thermal Radiation on Carreau Fluid Past a Melting Stretchable Cylinder

Jiann

Mohamad

Rawi

et al. 2023

Preprint

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“…Equations () and () are linearized with the help of the Quasilinearization approach 44–48 as

F_{ηη}^{i + 1} goodbreak+ A_{1}^{i} F_{η}^{i + 1} goodbreak+ A_{2}^{i} F_{ξ}^{i + 1} goodbreak+ A_{3}^{i} F_{τ}^{i + 1} goodbreak+ A_{4}^{i} F^{i + 1} goodbreak+ A_{5}^{i} G^{i + 1} goodbreak= A_{6}^{i},

G_{ηη}^{i + 1} goodbreak+ B_{1}^{i} G_{η}^{i + 1} goodbreak+ B_{2}^{i} G_{ξ}^{i + 1} goodbreak+ B_{3}^{i} G_{τ}^{i + 1} goodbreak+ B_{4}^{i} F_{η}^{i + 1} goodbreak+ B_{5}^{i} F^{i + 1} goodbreak= B_{6}^{i} .

…”

Section: Numerical Proceduresmentioning

confidence: 99%

“…Equations ( 6) and ( 7) are linearized with the help of the Quasilinearization approach [44][45][46][47][48] as…”

Section: Entropy Analysismentioning

confidence: 99%

Time‐dependent mixed convection of Prandtl–Eyring hybrid nanofluid flow over a vertical cone: Entropy analysis

Patil

Goudar

2023

Asia-Pacific J Chem Eng

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The current work is motivated by the rising applications of non‐Newtonian hybrid nanofluids and entropy optimization in large‐scale industries. The Prandtl–Eyring nanofluid model, one of the numerous non‐Newtonian fluid models, is developed using molecular theory rather than empirical formulas. This study investigates the mixed convection flow of Prandtl–Eyring nanofluids from a vertical conical surface. This problem's governing equations are highly nonlinear and linked. Mangler's nonsimilar transformations were used to obtain a nondimensional representation of the governing equations. The obtained equations were linearized and discretized using Quasilinearization and the implicit finite difference method. This study concludes that, compared to Newtonian fluids, Prandtl–Eyring fluids have reduced surface friction and fluid velocity. When comparing the Prandtl–Eyring hybrid nanofluid to the Newtonian hybrid nanofluid, we find that the latter improves energy transmission by about 11%. With the Prandtl–Eyring hybrid nanofluid model instead of the standard Newtonian model, entropy generation (EG) can be reduced. Energy transport efficiency is improved by changing the nanoparticles shape from spherical to lamina. Concisely at , the and boosted approximately by 29% and 17%, respectively, when shapes of the nanoparticles are changed from spherical to the lamina. The findings of heat transfer strength and surface friction coefficient are in excellent agreement with previously reported data.

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Comparative Study of Quadratic Mixed Convection MHD Carreau Fluid Flow on Cylinder and Flat Plate with Mass Transition

Jiann¹,

Zin

Rawi³

et al. 2023

Arab J Sci Eng

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Entropy generation analysis from the time-dependent quadratic combined convective flow with multiple diffusions and nonlinear thermal radiation

Cited by 11 publications

References 42 publications

Analysis of Quadratic Thermal Radiation on Carreau Fluid Past a Melting Stretchable Cylinder

Analysis of Quadratic Thermal Radiation on Carreau Fluid Past a Melting Stretchable Cylinder

Time‐dependent mixed convection of Prandtl–Eyring hybrid nanofluid flow over a vertical cone: Entropy analysis

Comparative Study of Quadratic Mixed Convection MHD Carreau Fluid Flow on Cylinder and Flat Plate with Mass Transition

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