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Comportement sur le long terme d'un fluide de refroidissement dans un cylindre vertical.

Long-term behaviour of cooling fluid in a vertical cylinder.

Auteurs : LIN X., ARMFIELD S. W.

Type d'article : Article

Résumé

The long-term behaviour of cooling an initially quiescent isothermal Newtonian fluid in a vertical cylinder by unsteady natural convection with a fixed wall temperature has been investigated in this study by scaling analysis and direct numerical simulation. Two specific cases are considered. Case 1 assumes that the fluid cooling is due to the imposed fixed temperature on the vertical sidewall whereas the top and bottom boundaries are adiabatic. Case 2 assumes that the cooling is due to that on both the vertical sidewall and the bottom boundary whereas the top boundary is adiabatic. The long-term behaviour of the fluid cooling in the cylinder is well represented by Ta(t), the average fluid temperature in the cylinder at time t, and the average Nusselt number on the cooling boundary.

Détails

  • Titre original : Long-term behaviour of cooling fluid in a vertical cylinder.
  • Identifiant de la fiche : 2005-1700
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 48 - n. 1
  • Date d'édition : 01/2005

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