Unsteady MHD Free Convective Flow of a Visco-Elastic Fluid Past an Infinite Vertical Porous Moving Plate with Variable Temperature and Concentration

  • K. Ramesh Babu
  • A. Parandhama
  • K. Venkateswara Raju
  • M. C. Raju
  • P. V. Satya Narayana
Original Paper
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Abstract

The present study considers the effect unsteady MHD free convective flow of a viscoelastic incompressible electrically conducting fluid past a moving vertical plate through a porous medium with time dependent oscillatory permeability and suction in presence of a uniform transverse magnetic field and heat source and chemical reaction along with heat and mass transfer are reported. A uniform magnetic field acts perpendicular to the porous surface, which absorbs the fluid with a suction velocity varying with time. The governing equations of the fluid flow, heat and mass transfer are solved by applying multi parameter perturbation technique. Comparison with previously published work have been conducted and the results are found to be in concordance with the previous study. A parametric study is performed on the influence of the visco-elastic fluid parameter, the magnetic field parameter, the permeability parameter, on the fluid velocity. The expressions for transient velocity, temperature, species concentration and non-dimensional skin friction at the plate are illustrated through tables to observe the visco-elastic effect in combination of other flow parameters involved in the solution.

Keywords

Chemical reaction Free convection Heat and mass transfer Heat source Mass diffusion Radiation absorption Visco-elastic 
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Notes

Acknowledgements

Authors are grateful to the reviewers for their valuable comments and suggestions which helped them to improve the quality of the research paper.

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Copyright information

© Springer India Pvt. Ltd. 2017

Authors and Affiliations

  • K. Ramesh Babu
    • 1
  • A. Parandhama
    • 1
  • K. Venkateswara Raju
    • 1
  • M. C. Raju
    • 2
  • P. V. Satya Narayana
    • 3
  1. 1.Department of MathematicsSree Vidyanikethan Engineering College (Autonomous)TirupatiIndia
  2. 2.Department of MathematicsAnnamacharya Institute of Technology and ScienceRajampetIndia
  3. 3.Department of MathematicsVIT UniversityVelloreIndia

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