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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/093/04/0054

    • Keywords

       

      Buongiorno model; entropy generation; heat generation/absorption; Joule heating; nonlinear thermal radiation; second grade fluid

    • Abstract

       

      The flow of a second grade fluid by a rotating stretched disk is considered. Brownian motion and thermophoresis characterise the nanofluid. Entropy generation in the presence of heat generation/absorption, Joule heating and nonlinear thermal radiation is discussed. Homotopic convergent solutions are developed. The behaviour of velocities (radial, axial, tangential), temperature, entropy generation, Bejan number, Nusselt number, skin friction and concentration is evaluated. The radial, axial and tangential velocities increase for larger viscoelastic parameters while the opposite trend is noted for temperature. Concentration decreases when Schmidt number and Brownian diffusion increase. Entropy generation increases when the Bejan number increase while the opposite is true for the Brinkman number and the magnetic parameter.

    • Author Affiliations

       

      TASAWAR HAYAT1 2 MEHREEN KANWAL1 SUMAIRA QAYYUM1 M IJAZ KHAN1 AHMED ALSAEDI2

      1. Department of Mathematics, Quaid-I-Azam University 45320, Islamabad 44000, Pakistan
      2. Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia

    • Dates

       
      Published
      1 October 2019
      Manuscript received
      12 February 2019
      Manuscript revised
      13 March 2019
      Accepted
      14 March 2019
      Early published
      Unedited version published online
      Final version published online
      12 July 2019

  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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