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Feasibility of Portable Smoke Ring Generators.
WALDEN RESEARCH CORP CAMBRIDGE MA
It was found that explosively powered vortex ring generators with diameters between 2 and 18 inches can be built which generate high speed vortex rings reproducibly. Also, it was found that aerosol introduced into these vortex rings during ring formation is transported over considerable distance at high speed within the vortex ring. Preliminary sketches of full scale field devices are presented. Author
Final rept. Aug 69-Jul 70.
Approved for public release; Distribution unlimited.