Unsteady Hydromagnetic Free Convection Flow with Heat Flux and Accelerated Boundary Motion

Pallath Chandran*, Nirmal C. Sacheti, Ashok K. Singh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


The effects of viscosity, magnetic field and buoyancy force on the unsteady free convection flow of an incompressible and electrically conducting fluid have been analysed when the flow is generated by uniformly accelerated motion of a vertical plate subject to constant heat flux. The resulting boundary value problem has been solved exactly for the temperature and velocity variables. The fluid velocity and the skin friction have been computed for some saturated liquids and the effects of the fluid and external forces have been discussed. It is observed that the increase in velocity caused by the larger heat flux can be controlled by enhancing the magnetic field strength. The skin friction at the boundary increases for larger Prandtl and Hartmann numbers, and decreases with increasing Grashof number.

Original languageEnglish
Pages (from-to)124-129
Number of pages6
JournalJournal of the Physical Society of Japan
Issue number1
Publication statusPublished - Jan 1998


  • Accelerated motion
  • Convolution
  • Exact solution
  • Free convection
  • Laplace transform
  • Rayleigh problem
  • Skin friction

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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