Unsteady MHD flow of a non-Newtonian fluid due to eccentric rotations of a porous disk and a fluid at infinity

A. M. Siddiqui, T. Haroon, T. Hayat, S. Asghar

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Abstract

An exact solution of the unsteady flow of a second-order fluid due to non-coaxial rotations of a porous disk and a fluid at infinity in the presence of a uniform transverse magnetic field is investigated. It is once again shown that for uniform suction or uniform injection at the disk an asymptotic profile exists for the velocity distribution. The effects of the magnetic field, the material parameters of the second-order fluid, suction and injection on the velocity distribution are studied. Further, from the solution of a rigid disk, it is found that for parameter β > .01, a non-Newtonian effect is present in the velocity field. However, for β < .01 the velocity field becomes a Newtonian one.

Original languageEnglish (US)
Pages (from-to)99-109
Number of pages11
JournalActa Mechanica
Volume147
Issue number1-4
DOIs
StatePublished - Jul 7 2001

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All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanical Engineering

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