Unsteady Flow of an Incompressible Viscous Electrically Conducting Fluid in Tube of Elliptical Cross Section under the Influence of Magnetic Field
Exact solution of an unsteady flow of elastico-viscous
electrically conducting fluid through a porous media in a tube of
elliptical cross section under the influence of constant pressure
gradient and magnetic field has been obtained in this paper. Initially,
the flow is generated by a constant pressure gradient. After attaining
the steady state, the pressure gradient is suddenly withdrawn and the
resulting fluid motion in a tube of elliptical cross section by taking
into account of the transverse magnetic field and porosity factor of
the bounding surface is investigated. The problem is solved in twostages
the first stage is a steady motion in tube under the influence of
a constant pressure gradient, the second stage concern with an
unsteady motion. The problem is solved employing separation of
variables technique. The results are expressed in terms of a nondimensional
porosity parameter (K), magnetic parameter (m) and
elastico-viscosity parameter (β), which depends on the Non-
Newtonian coefficient. The flow parameters are found to be identical
with that of Newtonian case as elastic-viscosity parameter and
magnetic parameter tends to zero and porosity tends to infinity. It is
seen that the effect of elastico-viscosity parameter, magnetic
parameter and the porosity parameter of the bounding surface has
significant effect on the velocity parameter.
[1] K. R. Rajagopal, P. L. Koloni, ”Continuum Mechanics and its
Applications”, Hemisphere Press, Washington, DC, 1989.
[2] K. Walters, “Relation between Coleman-Nall, Rivlin-Ericksen, Green-
Rivlin and Oldroyd fluids”, ZAMP, 21, 1970 pp. 592 - 600.
[3] J. E. Dunn, R. L. Fosdick, “Thermodynamics stability and boundedness
of fluids of complexity 2 and fluids of second grade”, Arch. Ratl. Mech.
Anal, 56, 1974, pp. 191 - 252.
[4] J. E. Dunn, K. R. Rajagopal, “Fluids of differential type-critical review
and thermodynamic analysis”, J. Eng. Sci., 33, 1995, pp. 689 - 729.
[5] K. R. Rajagopal, “Flow of visco-elastic fluids between rotating discs”,
Theor. Comput. Fluid Dyn., 3, 1992, pp. 185 - 206.
[6] N. Ch. PattabhiRamacharyulu, “Exact solutions of two dimensional
flows of second order fluid”, App. Sc Res, Sec - A, 15. 1964, pp. 41 – 50.
[7] S. G. Lekoudis, A. H. Nayef and Saric., “Compressible boundary layers
over wavy walls”, Physics of fluids, 19, 1976, pp. 514 - 19.
[8] P. N. Shankar, U. N. Shina, “The Rayeigh problem for wavy wall”, J.
Fluid Mech, 77, 1976, pp. 243 – 256.
[9] M. Lessen, S. T. Gangwani, “Effects of small amplitude wall waviness
upon the stability of the laminar boundary layer”, Physics of the fluids,
19, 1976, pp. 510 -513.
[10] K. Vajravelu, K. S. Shastri, “Free convective heat transfer in a viscous
incompressible fluid confined between a long vertical wavy wall and a
parallel flat plate”, J. Fluid Mech, 86, 1978, pp.365 – 383.
[11] U. N. Das, N. Ahmed, “Free convective MHD flow and heat transfer in
a viscous incompressible fluid confined between a long vertical wavy
wall and a parallel flat wall”, I.J. Pure & App. Math, 23, 1992, pp. 295 -
304.
[12] R.P Patidar, G. N. Purohit, ”Free convection flow of a viscous
incompressible fluid in a porous medium between two long vertical
wavy walls”, I. J. Math, 40, 1998, pp. 76 -86.
[13] R. Taneja, N. C. Jain, “MHD flow with slip effects and temperature
dependent heat source in a viscous in compressible fluid confined
between a long vertical wavy wall and a parallel flat wall”, J. Def. Sci.,
2004, pp.21 - 29.
[14] Ch. V. R. Murthy, S.B. Kulkarni, “On the class of exact solutions of an
incompressible fluid flow of second order type by creating sinusoidal
disturbances”, J. Def.Sci, 57, 2, 2007, pp. 197-209.
[15] S. B. Kulkarni, “Unsteady poiseuille flow of second order fluid in a tube
of elliptical cross section on the porous boundary”, Acceptance letter
dated 21/08/2014 in Special Topics & Reviews in Porous Media
[16] W. Noll, “A mathematical theory of mechanical behaviour of continuous
media”, Arch. Ratl. Mech. & Anal., 2, 1958, pp. 197 – 226.
[17] B. D. Coleman, W. Noll, “An approximate theorem for the functionals
with application in continuum mechanics”, Arch. Ratl. Mech and Anal,
6, 1960, pp. 355 – 376. [18] R. S. Rivlin, J. L. Ericksen, “Stress relaxation for isotropic materials”, J.
Rat. Mech, and Anal, 4, 1955, pp.350 – 362.
[19] M.Reiner, “A mathematical theory of diletancy”,Amer.J. ofMaths, 64,
1964, pp. 350 - 362.
[20] H. Darcy, “ Les Fontaines Publiques de la Ville de, Dijon, Dalmont,
Paris” 1856.
[21] E. M. Erdogan, E. Imrak, “Effects of the side walls on the unsteady flow
of a Second-grade fluid in a duct of uniform cross-section”, Int. Journal
of Non-Linear Mechanics, 39, 2004, pp. 1379-1384.
[22] S. Islam, Z. Bano, T. Haroon and A.M. Siddiqui, “Unsteady poiseuille
flow of second grade fluid in a tube of elliptical cross-section”, 12, 4,
2011. 291-295.
[1] K. R. Rajagopal, P. L. Koloni, ”Continuum Mechanics and its
Applications”, Hemisphere Press, Washington, DC, 1989.
[2] K. Walters, “Relation between Coleman-Nall, Rivlin-Ericksen, Green-
Rivlin and Oldroyd fluids”, ZAMP, 21, 1970 pp. 592 - 600.
[3] J. E. Dunn, R. L. Fosdick, “Thermodynamics stability and boundedness
of fluids of complexity 2 and fluids of second grade”, Arch. Ratl. Mech.
Anal, 56, 1974, pp. 191 - 252.
[4] J. E. Dunn, K. R. Rajagopal, “Fluids of differential type-critical review
and thermodynamic analysis”, J. Eng. Sci., 33, 1995, pp. 689 - 729.
[5] K. R. Rajagopal, “Flow of visco-elastic fluids between rotating discs”,
Theor. Comput. Fluid Dyn., 3, 1992, pp. 185 - 206.
[6] N. Ch. PattabhiRamacharyulu, “Exact solutions of two dimensional
flows of second order fluid”, App. Sc Res, Sec - A, 15. 1964, pp. 41 – 50.
[7] S. G. Lekoudis, A. H. Nayef and Saric., “Compressible boundary layers
over wavy walls”, Physics of fluids, 19, 1976, pp. 514 - 19.
[8] P. N. Shankar, U. N. Shina, “The Rayeigh problem for wavy wall”, J.
Fluid Mech, 77, 1976, pp. 243 – 256.
[9] M. Lessen, S. T. Gangwani, “Effects of small amplitude wall waviness
upon the stability of the laminar boundary layer”, Physics of the fluids,
19, 1976, pp. 510 -513.
[10] K. Vajravelu, K. S. Shastri, “Free convective heat transfer in a viscous
incompressible fluid confined between a long vertical wavy wall and a
parallel flat plate”, J. Fluid Mech, 86, 1978, pp.365 – 383.
[11] U. N. Das, N. Ahmed, “Free convective MHD flow and heat transfer in
a viscous incompressible fluid confined between a long vertical wavy
wall and a parallel flat wall”, I.J. Pure & App. Math, 23, 1992, pp. 295 -
304.
[12] R.P Patidar, G. N. Purohit, ”Free convection flow of a viscous
incompressible fluid in a porous medium between two long vertical
wavy walls”, I. J. Math, 40, 1998, pp. 76 -86.
[13] R. Taneja, N. C. Jain, “MHD flow with slip effects and temperature
dependent heat source in a viscous in compressible fluid confined
between a long vertical wavy wall and a parallel flat wall”, J. Def. Sci.,
2004, pp.21 - 29.
[14] Ch. V. R. Murthy, S.B. Kulkarni, “On the class of exact solutions of an
incompressible fluid flow of second order type by creating sinusoidal
disturbances”, J. Def.Sci, 57, 2, 2007, pp. 197-209.
[15] S. B. Kulkarni, “Unsteady poiseuille flow of second order fluid in a tube
of elliptical cross section on the porous boundary”, Acceptance letter
dated 21/08/2014 in Special Topics & Reviews in Porous Media
[16] W. Noll, “A mathematical theory of mechanical behaviour of continuous
media”, Arch. Ratl. Mech. & Anal., 2, 1958, pp. 197 – 226.
[17] B. D. Coleman, W. Noll, “An approximate theorem for the functionals
with application in continuum mechanics”, Arch. Ratl. Mech and Anal,
6, 1960, pp. 355 – 376. [18] R. S. Rivlin, J. L. Ericksen, “Stress relaxation for isotropic materials”, J.
Rat. Mech, and Anal, 4, 1955, pp.350 – 362.
[19] M.Reiner, “A mathematical theory of diletancy”,Amer.J. ofMaths, 64,
1964, pp. 350 - 362.
[20] H. Darcy, “ Les Fontaines Publiques de la Ville de, Dijon, Dalmont,
Paris” 1856.
[21] E. M. Erdogan, E. Imrak, “Effects of the side walls on the unsteady flow
of a Second-grade fluid in a duct of uniform cross-section”, Int. Journal
of Non-Linear Mechanics, 39, 2004, pp. 1379-1384.
[22] S. Islam, Z. Bano, T. Haroon and A.M. Siddiqui, “Unsteady poiseuille
flow of second grade fluid in a tube of elliptical cross-section”, 12, 4,
2011. 291-295.
@article{"International Journal of Engineering, Mathematical and Physical Sciences:68730", author = "Sanjay Baburao Kulkarni", title = "Unsteady Flow of an Incompressible Viscous Electrically Conducting Fluid in Tube of Elliptical Cross Section under the Influence of Magnetic Field", abstract = "Exact solution of an unsteady flow of elastico-viscous
electrically conducting fluid through a porous media in a tube of
elliptical cross section under the influence of constant pressure
gradient and magnetic field has been obtained in this paper. Initially,
the flow is generated by a constant pressure gradient. After attaining
the steady state, the pressure gradient is suddenly withdrawn and the
resulting fluid motion in a tube of elliptical cross section by taking
into account of the transverse magnetic field and porosity factor of
the bounding surface is investigated. The problem is solved in twostages
the first stage is a steady motion in tube under the influence of
a constant pressure gradient, the second stage concern with an
unsteady motion. The problem is solved employing separation of
variables technique. The results are expressed in terms of a nondimensional
porosity parameter (K), magnetic parameter (m) and
elastico-viscosity parameter (β), which depends on the Non-
Newtonian coefficient. The flow parameters are found to be identical
with that of Newtonian case as elastic-viscosity parameter and
magnetic parameter tends to zero and porosity tends to infinity. It is
seen that the effect of elastico-viscosity parameter, magnetic
parameter and the porosity parameter of the bounding surface has
significant effect on the velocity parameter.
", keywords = "Elastico-viscous fluid, Elliptic cross-section, Porous media, Second order fluids.", volume = "8", number = "10", pages = "1362-7", }
