Mathur, NB and Ramesh, G and Yajnik, KS (1988) Continuous coloured smoke-wire technique for flow visualisation. Journal of Aeronautical Society of India, 40. pp. 131-137.
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Abstract
Continuous colored smoke-wire technique has been developed for flow visualization in wind tunnels. The improved contrast of colored smoke sheet facilitates flow visualization. In the present technique, a vertical smoke-wire is used for introducing controlled sheets of smoke streaklines during a wind tunnel run. Regulated drops of a mixture of paraffin oil with colored dye are allowed to fall along the stainless steel wire. The wire is thus coated with a thin film of falling paraffin or with minute colored droplets along the length. The oil mixture subsequently evaporates through the resistive heating of the wire thus producing a sheet of colored streaklines. The present technique has been used in the NAL 0.9m low speed wind tunnel for flow visualization around the wing of an aircraft configuration and also a delta wing model at high incidence.
| Item Type: | Article |
|---|---|
| Additional Information: | Copyright for this article belongs to Aeronautical Society of India |
| Uncontrolled Keywords: | Color photography;Flow visualisation;Smoke-trails;Low speed wind tunnels;Streak cameras;Wind tunnel models |
| Subjects: | ENGINEERING > Fluid Mechanics and Thermodynamics AERONAUTICS > Aeronautics (General) |
| Depositing User: | M/S ICAST NAL |
| Date Deposited: | 22 Jan 2008 |
| Last Modified: | 07 Jun 2010 10:36 |
| URI: | http://nal-ir.nal.res.in/id/eprint/4373 |
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