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Simulation numérique de la ventilation par déplacement.

Numerische Simulation von Quellluftsystemen.

Auteurs : KRIEGEL M., MÜLLER D.

Type d'article : Article

Résumé

Computer Fluid Dynamics (CFD) Analysis for predicting indoor air environment are increasingly used. Although it is possible to calculate the flow dominating effects of displacement ventilation - natural and mixed convection, wall-bounded flow and free-stream regions - with different two-equation turbulence models, it is still difficult to predict a displacement ventilation system with only one set of parameters for a standard two-equation turbulence model. This article presents an extension of a two-equation turbulence model to predict the air flow for displacement ventilation systems. Firstly, each flow effect is investigated separately. Secondly, CFD-analysis of a test room is compared with full-scale measurements. The modified two-equation turbulence model leads to good agreement of the measurements and the calculations.

Détails

  • Titre original : Numerische Simulation von Quellluftsystemen.
  • Identifiant de la fiche : 2005-2738
  • Langues : Allemand
  • Source : KI Luft Kältetech. - vol. 40 - n. 12
  • Date d'édition : 12/2004

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