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Une méthode numérique pour la convection naturelle et la conduction de chaleur autour et dans un tube circulaire horizontal.

A numerical method for natural convection and heat conduction around and in a horizontal circular pipe.

Auteurs : YAMAMOTO S., NIIYAMA D., SHIN B. R.

Type d'article : Article

Résumé

Natural convection around a horizontal circular pipe coupled with heat conduction in the solid structure is numerically investigated using a preconditioning method for solving incompressible and compressible Navier-Stokes equations. In this method, fundamental equations are completely reduced to an equation of heat conduction when the flow field is static (zero velocity). Therefore, not only compressible flows but also very slow flows such as natural convection in a flow field and heat conduction in a static field can be simultaneously calculated using the same computational algorithm. In the article, the authors first calculate the compressible flow around a NACA0012 airfoil with conduction in the airfoil and then simulate natural convections around a horizontal circular pipe with a different heat conductivity. Finally, they numerically investigate the effect of heat conductivity of the pipe on natural convection.

Détails

  • Titre original : A numerical method for natural convection and heat conduction around and in a horizontal circular pipe.
  • Identifiant de la fiche : 2005-0596
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 26
  • Date d'édition : 12/2004

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