Brinkman Flow Generated by the Rectilinear Oscillations of an Oblate Spheroid Along its Axis of Symmetry

  • Authors

    • Satish Kumar. D
    • S. K. Vali
    2018-10-02
    https://doi.org/10.14419/ijet.v7i4.10.21303
  • Rectilinear oscillations Oblate spheroid, porous medium, Stokesian assumption, Brinkman model, velocity, pressure, drag
  • In this paper, we consider an impervious Oblate spheroid placed in a fully saturated porous medium, where in the flow is governed by Brinkmann flow equation. We  assume that the  spheroid is performing rectilinear harmonic oscillations along the axis of symmetry with a speed u.  The flow is studied under the Stokesian approximation. The expressions for the velocity and pressure fields are obtained in terms of Legendre  functions,  associated Legendre functions and  Radial and Angular spheroidal wave functions. We obtain an expression for the drag experienced by the spheroid, and  numerically study its variation with respect to the flow parameters and display its variation  through graphs.

     

     

     

  • References

    1. [1] Pozrikids.C., (2011), Introduction to Theoretical and Computational Fluid Dynamics, Second Edition, OXFORD University Press.

      [2] Stokes, G. G., (1851), On the effect of fluids on the motion of pendulums, Trans. Camb. Phil. Soc, Vol. 9.

      [3] Kanwal, R.P., (1955), Rotary and longitudinal oscillations of axisymmetric bodies in a viscous fluid, The Quart.J..Mech.App.Math.8, pp.146-163.

      [4] Lakshmana Rao, S.K and Bhujanga Rao, P., Circular cylinder oscillating about a mean position in incompressible micropolar fluid., Int.J.Engng. Sci., Vol 10, pp.185-191,

      [5] Lakshmana Rao, S.K and Bhujanga Rao, P., (1971), The oscillations of a sphere in a micropolar fluid., Int.J.Engng. Sci.,Vol 9,pp.651-672.

      [6] Lakshmana Rao, S.K. and Iyengar, T.K.V. , (1981), The slow stationary flow of incompressible micropolar fluid past a spheroid, Int. J. Engg. Sci, Vol 19, pp 189-220.

      [7] Abramowitz, M. and Stegun, I.A., (1965). Handbook of Mathematical functions with formulas, graphs and mathematical tables, Dover publications, INC, NewYork.

      [8] D. Satish Kumar and Dr.S.Kalesha Vali, (2015), Brinkman Flow Past An Impervious Spheroid Under Stokesian Assumption, Global Journal of Pure and Applied Mathematics. ISSN 0973-1768 Vol 11, Number 3,pp. 1399-1412.

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  • How to Cite

    Kumar. D, S., & K. Vali, S. (2018). Brinkman Flow Generated by the Rectilinear Oscillations of an Oblate Spheroid Along its Axis of Symmetry. International Journal of Engineering & Technology, 7(4.10), 640-644. https://doi.org/10.14419/ijet.v7i4.10.21303