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Unsteady MHD flow past a porous plate with step function change in suction at slip flow regime

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Abstract

Unsteady two-dimensional hydromagnetic flow of an electrically conducting viscous incompressible fluid past a semi-infinite porous flat plate with step function change in suction velocity is studied allowing a first order velocity slip at the boundary condition. The solution of the problem is obtained in closed form and the results are discussed with the aid of graphs for various parameters entering in the problem.

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Abbreviations

B :

intensity of magnetic field

H :

magnetic field parameter,H=(M+1/4)1/2−1/2

h :

rarefaction parameter

L 1 :

slip coefficient;\(L_1 = \left( {\tfrac{{2 - f}}{f}} \right)I\);I, mean free path of gas molecules;f, Maxwell's reflection coefficient

M :

magnetic field parameter

r :

suction parameter

t′ :

time

t :

dimensionless time

u′ :

velocity of the fluid

u :

dimensionless velocity of the fluid

U :

velocity of the fluid at infinity

v′ :

suction velocity

v 1 :

suction velocity att<=0

v 2 :

suction velocity att>0

x′ :

distance parallel to the plate

y′ :

distance normal to the plate

y :

nondimensional distance normal to the plate

v :

kinematic viscosity

σ:

electric conductivity of the fluid

ϱ:

density of the fluid

τ′:

shear stress at the wall

τ:

nondimensional shear stress at the wall

erf:

error function

erfc:

complementary error function

References

  • Kelly, R. E.: 1965,Quart. J. Mech. Appl. Math. 18, 287.

    Google Scholar 

  • Pop, I.: 1971,Ind. J. Phys. 45, 275.

    Google Scholar 

  • Purohit, G. N. and Goyal, M. C.: 1975,Proc. Ind. Acad. Sci. A 81, 215.

    Google Scholar 

  • Revankar, S. T. and Korwar, V. M.: 1979,Nat. Acad. Sci. Letters 2, 389.

    Google Scholar 

  • Revankar, S. T. and Korwar, V. M.: 1980,Appl. Sci. Res. (submitted).

  • Schaaf, S. A.: 1959 Univ. California Inst. Eng. Res. Report HE-150-60.

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Authors and Affiliations

  1. Department of Engineering Physics, McMaster University, Hamilton, Canada

    S. T. Revankar

  2. Department of Physics, Karnatak University, Dharwad, India

    V. M. Korwar

Authors
  1. S. T. Revankar
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  2. V. M. Korwar
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Revankar, S.T., Korwar, V.M. Unsteady MHD flow past a porous plate with step function change in suction at slip flow regime. Astrophys Space Sci 86, 25–31 (1982). https://doi.org/10.1007/BF00651826

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  • DOI: https://doi.org/10.1007/BF00651826

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