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Document IIF

Approche optimisée pour les simulations CFD des systèmes HVAC avec diffuseurs d’air à grille. 

Optimized approach for CFD simulations of HVAC systems with grill air diffusers.

Numéro : 0777

Auteurs : VERA J., SCHILLACI E., RIGOLA J., OLIET C.

Résumé

A proper CFD simulation of air distribution within a room requires the correct representation of inlet conditions from ventilation grids. Those elements are usually characterized by blades with a certain inclination angle or even by a curvature, whose correct representation by finite volumes approaches requires the employment of very fine meshes. The coupling of those fine inlet domains with the coarser mesh of the environment can lead to unacceptable costs for common computational resources.
In this work, an optimized methodology is presented to simulate the inlet flow conditions of an air diffuser within a bigger environment, like a room or a transport vehicle cabin. The method aims at reducing the computational cost of CFD simulations, by solving the velocity field of the diffuser in a local domain, and then mapping this velocity to the surrounding domain. Additionally, this allows us to solve the diffuser only once and reuse the velocity field multiple times for different room configurations.

Documents disponibles

Format PDF

Pages : 11

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Optimized approach for CFD simulations of HVAC systems with grill air diffusers.
  • Identifiant de la fiche : 30031878
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0777

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