Visualizing full-scale ventilation airflows.

Author(s) : SETTLES G. S.

Type of article: Article

Summary

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.

Details

  • Original title: Visualizing full-scale ventilation airflows.
  • Record ID : 1998-1806
  • Languages: English
  • Source: ASHRAE Journal - vol. 39 - n. 7
  • Publication date: 1997/07
  • Document available for consultation in the library of the IIR headquarters only.

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