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

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  • Hayat, Tasawar
  • Nawaz, Sadaf
  • Alsaedi, Ahmed

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.

Suggested Citation

  • Hayat, Tasawar & Nawaz, Sadaf & Alsaedi, Ahmed, 2019. "Entropy generation and endoscopic effects on peristalsis with modified Darcy’s law," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 536(C).
    • Handle: RePEc:eee:phsmap:v:536:y:2019:i:c:s0378437119304443
    DOI: 10.1016/j.physa.2019.04.082
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    References listed on IDEAS

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    1. Rashidi, Saman & Akar, Shima & Bovand, Masoud & Ellahi, Rahmat, 2018. "Volume of fluid model to simulate the nanofluid flow and entropy generation in a single slope solar still," Renewable Energy, Elsevier, vol. 115(C), pages 400-410.
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    3. Wang, Yongqi & Hayat, Tasawar & Ali, Nasir & Oberlack, Martin, 2008. "Magnetohydrodynamic peristaltic motion of a Sisko fluid in a symmetric or asymmetric channel," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(2), pages 347-362.
    4. Akbar, Noreen Sher, 2015. "Entropy generation and energy conversion rate for the peristaltic flow in a tube with magnetic field," Energy, Elsevier, vol. 82(C), pages 23-30.
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