Numerical Investigation of Combined Radiation and Nutral Convention Heat Transfer in a Horizonal Annulus

نویسندگان

  • A Sinaie Mechanical Engineering, Shahid Bahonar University of Kerman
  • M. Djavidi Mechanical Engineering, Shahid Bahonar University of Kerman
چکیده مقاله:

Combined radiation and natural convection within the annular region of two infinitely long horizontal concentric cylinders are investigated numerically in this research. Radial and tangential radiation effects ate considered using Milne-Eddington approximation for a two-dimensional radiative transfer. The basic conservation equations are discretized with the finite volume method and SIMPLER algorithm. The result are presented through velocity vector field, streamline and isothermal plots. It is observed that radiation has significant effect on flow and temperature fields. Results of local Nusselt number prediction along the surface of the inner cylinder show that radiation suppresses the angular dependence of Nusselt number.

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عنوان ژورنال

دوره 12  شماره 4

صفحات  259- 270

تاریخ انتشار 1999-11-01

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