Radiation effects on free convection flow near a moving vertical plate with newtonian heating

M. Narahari, Anuar Mohd Ishak

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

The influence of radiation on the unsteady free convection flow of a viscous incompressible fluid past a moving vertical plate with Newtonian heating is investigated theoretically. The fluid is gray, absorbing-emitting but non-scattering medium and the Rosseland approximation is used to describe the radiative heat flux in the energy equation. For a detailed analysis of the problem, three important cases of flow due to: (1) motion with uniform velocity, (2) uniformly accelerated motion and (3) exponentially accelerated motion of the plate have been considered. The dimensionless governing equations are solved analytically using the Laplace transform technique. Numerical results for the temperature, velocity, skin-friction and the Nusselt number are shown graphically. The results show that an increase in the radiation parameter leads to a decrease in the temperature and velocity. Also, an increase in the radiation parameter increases the skin friction and the Nusselt number at the plate.

Original languageEnglish
Pages (from-to)1096-1104
Number of pages9
JournalJournal of Applied Sciences
Volume11
Issue number7
DOIs
Publication statusPublished - 2011

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Radiation effects
Natural convection
Skin friction
Nusselt number
Radiation
Heating
Fluids
Laplace transforms
Heat flux
Temperature

Keywords

  • Free convection
  • Moving vertical plate
  • Newtonian heating
  • Thermal radiation

ASJC Scopus subject areas

  • General

Cite this

Radiation effects on free convection flow near a moving vertical plate with newtonian heating. / Narahari, M.; Mohd Ishak, Anuar.

In: Journal of Applied Sciences, Vol. 11, No. 7, 2011, p. 1096-1104.

Research output: Contribution to journalArticle

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