An experimental technique for the study of velocity profiles in a laminar jet using a pulsed nitrogen laser

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Author
Armstrong, David T.
Date
1984-09Advisor
Culbreth, W.G.
Metadata
Show full item recordAbstract
A nonintrusive technique for flow visualization of
momentum jets has been investigated. A flow system
containing a fluid photosensitive to ultraviolet radiation
(a solution of mineral spirits and photochromic dye) has
been constructed for generating a momentum jet in a test
chamber. An ultraviolet beam (337.1 nm) from a pulsed
nitrogen gas laser was fired through the test chamber
producing opaque traces in the jet and ambient fluid.
Movement of the fluid deformed these traces and produced a
record of fluid flow. Velocity distributions have been
obtained in laminar jets.