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Combined effect of magnetic field and rotation on thermal stability of a couple-stress fluid heated from below in the presence of suspended particles

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Języki publikacji
EN
Abstrakty
EN
Thermal stability of a couple-stress fluid in the presence of suspended particles, magnetic field and rotation is considered. Following the linearized stability theory and normal mode analysis, the dispersion relation is obtained. For stationary convection, it is found that suspended particles have a destabilizing effect whereas rotation has a stabilizing effect. The magnetic field and couple-stresses have a stabilizing effect under certain conditions. In the absence of rotation, couple-stresses and magnetic field have a stabilizing effect on the system. It is found that the principle of exchange of stabilities is satisfied in the absence of the magnetic field.
Rocznik
Strony
931--942
Opis fizyczny
Bibliogr. 9 poz., wykr.
Twórcy
autor
Bibliografia
  • Aggarwal A.K. (2010): Effect of rotation on thermosolutal convection in a Rivlin-Ericksen fluid permeated with suspended particles in porous medium - Adv. Theor. Appl. Mech., vol.3, No.4, pp.177-188.
  • Aggarwal A.K. and Prakash K. (2009): Effect of suspended particles and rotation on thermal instability of ferrofluids - Int. J. of Applied Mechanics and Engineering, vol.14, No.1, pp.55-66.
  • Chandrasekhar S. (1981): Hydrodynamic and Hydromagnetic Stability. - New York: Dover Publications.
  • Kumar V., Aggarwal A.K. and Kumar S. (2010): Thermal convection in a Walters' (model B') elastico-viscous dusty fluid in hydromagnetics with the effect of compressibility and rotation. - Int. J. of Applied Mechanics and Engineering, vol.15, No.1, pp.51-62.
  • Lin J.R. (1997): Static and dynamic behaviors of pure squeeze films in couple stress fluid lubricated salt journal bearings. - Proc. I. Mech. E. Part J. Journal of Engg. Tribiology, vol.211, No.1, pp.29-36.
  • Sharma R.C. and Aggarwal A.K. (2006): Effect of compressibility and suspended particles on thermal convection in a Walters' B? elastico-viscous fluid in hydromagnetics. - Int. J. of Applied Mechanics and Engineering, vol.11, No.2, pp.391-399.
  • Sharma R.C. and Sharma S. (2001): On electrically conducting couple-stress fluid heated from below in porous medium in presence of uniform horizontal magnetic field. - Int. J. of Applied Mechanics and Engineering, vol.6, No.2, pp.251-263.
  • Stokes V.K. (1966): Couple-stresses in fluids. - Phys. Fluids, vol.9, pp.1709-1715.
  • Walicki E. and Walicka A. (1999): Inertia effecting the squeeze film of a couple-stress fluid in biological bearings. - Int. J. Appl. Mech. Engg., vol.4, pp.363-373.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ5-0018-0001
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