A transient free convection study with temperature-dependent viscosity in a square cavity with a local heat source

M. S. Astanina, M. A. Sheremet

Research output: Contribution to journalConference article


Unsteady natural convection inside of a differentially-heated square enclosure filled with a fluid of temperature-dependent viscosity has been numerically studied. A mathematical model formulated in the dimensionless stream function and vorticity has been solved by a finite difference method of the second order accuracy. The effect of dimensionless time and Prandtl number on streamlines and isotherms has been investigated for Ra = 105. The results clearly demonstrate an evolution of fluid flow and heat transfer in the case of variable viscosity fluid.

Original languageEnglish
Article number012039
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 2 Jun 2016
EventInternational Conference on Mechanical Engineering, Automation and Control Systems 2015, MEACS 2015 - Tomsk, Russian Federation
Duration: 1 Dec 20154 Dec 2015


ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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