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Visualiser les écoulements d'air de ventilation en grandeur nature.

Visualizing full-scale ventilation airflows.

Auteurs : SETTLES G. S.

Type d'article : Article

Résumé

Optical flow visualization involves no tracer particles, but passes a light beam through the flow and then examines this beam for distortions caused by temperature differences. Recently, a new approach to full-scale schlieren flow visualization became feasible. One wall of a large room is covered with a uniform "source" grid made of parallel black and white lines. At the other end of the room a lens forms an image of this grid on a sheet of photographic film placed in the "cutoff" position. This new instrument has only been in operation for about a year. Some early results are given next.

Détails

  • Titre original : Visualizing full-scale ventilation airflows.
  • Identifiant de la fiche : 1998-1806
  • Langues : Anglais
  • Source : ASHRAE Journal - vol. 39 - n. 7
  • Date d'édition : 07/1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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