The effect of magnetic field on instabilities of heat transfer from an obstacle in a channel

This paper presents forced convective heat transfer in a channel with a built-in square obstacle. The governing equations with the boundary conditions are solved using a finite volume method. The computations were done for a fixed blockage ratio (S¼1/8) at Pr¼0.71, and Reynolds (Re) and Stuart (N) numbers ranging from 1 to 250 and 0 to 10, respectively. The results are presented to show the effect of the channel walls and streamwise magnetic field at different Reynolds numbers on forced convection heat transfer from a square cylinder. A correlation is obtained for Nusselt number, in which the effect of a magnetic field is taken into account. The obtained results revealed that the existence of channel walls decreases the effects of magnetic field on Nusselt number. It also showed that by increasing Stuart number the thickness of thermal boundary layer increases and the convective heat transfer decreases
 

مقالات
حجم فایل 1684‌کیلوبایت
زبان مقاله ENGLISH
سال انتشار 2015
محل انتشار Journal of Magnetism and Magnetic Materials
مشخصات کلی
تعداد صفحات 7
تعداد صفحات محصول 1-20

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The effect of magnetic field on instabilities of heat transfer from an obstacle in a channel

  • تولید کننده: S. Rashidi
  • شناسنامه: MC2-1117-paper3
  • موجودی: در انبار
  • تاریخ چاپ: 2016-10-22
  • نویسنده: S. Rashidi, J.A. Esfahani
  • ژورنال: Journal of Magnetism and Magnetic Materials
  • رایگان

برچسب ها: Finite volume, Forced convection, Magnetic field, Stuart number, Nusselt number, square cylinder