Publication detail

Definition of air flow parameters from records of flow visualization using a fog.

PAVELEK, M. JANOTKOVÁ, E.

Czech title

Stanovení parametrů proudů ze záznamů vizualizece proudění pomocí kouře

English title

Definition of air flow parameters from records of flow visualization using a fog.

Type

conference paper

Language

en

Original abstract

Visualization and measuring methods using a fog can be effectively applied to the research of ventilation and warm air heating. These methods allow visualization of airflow boundaries, and from that airflow shapes, ventilation efficiency, etc. can be deduced. In the course of research of air jet from ventilation outlets, it is possible to use visual recordings to evaluate mainly the length of the marginal zone and the expansion angle in the main zone, which in turn determines the outlet constant for example. Analysis of non-isothermal jets easily enables evaluation of jet axis position, while dynamic visual recordings permit the qualitative evaluation of jet stability, jet direction, etc. This paper outlines various examples of visual recordings whose results can be extrapolated towards further quantitative analysis of flows in ventilated and heated spaces.

Czech abstract

Vizualizační a měřicí metody používající kouř mohou být efektivně použity při výzkumu větrání a teplovzdušného vytápění. Umožňují určovat hranice proudů, tvary proudů, účinnost větrání apod.

English abstract

Visualization and measuring methods using a fog can be effectively applied to the research of ventilation and warm air heating. These methods allow visualization of airflow boundaries, and from that airflow shapes, ventilation efficiency, etc. can be deduced. In the course of research of air jet from ventilation outlets, it is possible to use visual recordings to evaluate mainly the length of the marginal zone and the expansion angle in the main zone, which in turn determines the outlet constant for example. Analysis of non-isothermal jets easily enables evaluation of jet axis position, while dynamic visual recordings permit the qualitative evaluation of jet stability, jet direction, etc. This paper outlines various examples of visual recordings whose results can be extrapolated towards further quantitative analysis of flows in ventilated and heated spaces.

Keywords in English

Visualization, Ventilation, Outlets.

RIV year

2002

Released

01.01.2002

Publisher

RoomVent 2002

Location

Copenhagen

ISBN

87-989117-0-8

Book

Proceedings of 8th International Conference on Air Distribution in Rooms

Pages count

4

BIBTEX


@inproceedings{BUT7195,
  author="Milan {Pavelek} and Eva {Janotková},
  title="Definition of air flow parameters from records of flow visualization using a fog.",
  booktitle="Proceedings of 8th International Conference on Air Distribution in Rooms",
  year="2002",
  month="January",
  publisher="RoomVent 2002",
  address="Copenhagen",
  isbn="87-989117-0-8"
}