- Author
- Bassett, R. W. | Fowler, H. S.
- Title
- Improvements to a Smoke Generator for Use in Wind Tunnels. Test Report.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Report
- DME-MET-514, October 1971, 11 p.
- Distribution
- Available from National Technical Information Service
- Keywords
- wind tunnels | smoke generators | air velocity | air flow
- Abstract
- In order to overcome disadvantages in existing methods, a new smoke-system for wind tunnels has been investigated. The system consists simply of a device for mixing jets of anhydrous ammonia and sulphur dioxide gases. It is instantly controllable, produces dense white smoke without clogging, is easily portable, and poses no fire risk. Provided simple precautions are taken there is not danger of toxic concentrations building up, and the substances used are non-corrosive, readily available, and cheap. The system has been improved by the design of a large-capacity probe for use in high-speed airstreams.