Entropy generation and endoscopic effects on peristalsis with modified Darcy’s law

Tasawar Hayat, Sadaf Nawaz and Ahmed Alsaedi

Physica A: Statistical Mechanics and its Applications, 2019, vol. 536, issue C

Abstract: Present attempt highlights the outcome of endoscopy and entropy generation in MHD peristaltic flow of Sisko fluid. Unlike the traditional approach, the flow modeling for porous medium is based upon modified Darcy’s law. Silent features of Joule heating and viscous dissipation are investigated. Convective conditions for heat transfer are utilized. The problem after invoking long wavelength approximation is numerically solved. Graphical analysis provides physical insight. Graphs are plotted for velocity, temperature, entropy generation, Bejan number and heat transfer coefficient for the pertinent parameters of interest. Results discloses the enhancement in Darcy number enhanced the fluid velocity and temperature. It also caused an enhancement in entropy generation and Bejan number. Magnetic field leads to enhance the temperature and entropy generation. Moreover the flexible wall parameters show increasing trend for elastance coefficients whereas damping coefficient resists the fluid velocity.

Keywords: Sisko fluid; Viscous dissipation; Endoscope; Convective boundary conditions; Entropy generation; Modified Darcy law; Joule heating and numerical solution (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:536:y:2019:i:c:s0378437119304443

DOI: 10.1016/j.physa.2019.04.082

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