Entropy generation analysis for a thin couple stress film flow over an inclined surface with Newtonian cooling

Adesanya, Samuel O.; Egere, Amanze C.; Lebelo, Ramoshweu Solomon

doi:10.1016/j.physa.2019.121260

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…They also analyzed that the entropy and Bejan numbers are decreasing via couple stress parameters but at different rates. A gravity-driven flow of couple stress fluid over a heated inclined plate under the effects of convective boundary conditions was investigated by Adesanya et al [9]. They used Mathematica version 8.0 software to solve the coupled boundary value problem and presented the solution in analytical form.…”

Section: Introductionmentioning

confidence: 99%

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Analytical Study on Couple Stress Fluid in an inclined Channel

et al. 2021

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Numerical and analytical solutions of Stokes theory of couple stress fluid under the effects of constant, space, and variable viscosity in the inclined channel are discussed here. The considered couple stress fluid is described mathematically with the definition of the stress tensor. The dimensional form of the boundary value problem is transformed into dimensionless form by defining dimensionless quantities and then solved with help of the perturbation technique. The analytical expressions of velocity and temperature of all cases based on the viscosity of the couple stress fluid are presented. For the validity of the perturbation solution, the Pseudo-Spectral collocation method is employed for each case of the viscosity model including constant, space, and Vogel's models, respectively. The solution of the perturbation method and Pseudo-Spectral methods are shown together in the graphs. The effects of couple stress parameters on velocity and temperature distributions are also elaborated with physical reasoning in the results and discussion part. It is observed that velocity and temperature of fluid escalate via the pressure gradient parameter and Brinkman number while decelerating via couple stress parameter.

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Section: Introductionmentioning

confidence: 99%

“…Adesanya et al [12] discussed the entropy analysis in couple stress fluid with the account of constant liquid properties and convective boundary conditions trough inclined channel. Hassan et al [13] used the Adomian decomposition method to solve the nonlinear equations of the hydromagnetic flow of couple stress fluid through porous walls.…”

Section: Introductionmentioning

confidence: 99%