Accession Number : AD0770426

Title :   Revised Theory of Vortex Rings - a Simplified Review of the State of the Art, with Addendum on Prospects of Using Vortex Rings to Convey Tear Gas.

Descriptive Note : Memorandum rept.,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Zaroodny,Serge J.

Report Date : JUN 1973

Pagination or Media Count : 94

Abstract : The vortex ring is an essential and ubiquitous phenomenon that has been rather neglected in aerodynamics and technology, perhaps because it is usually construed, unfortunately, as a mere exercise in old-fashioned mathematics. The existing venerable theories of this phenomenon are at once little known, difficult, uncoordinated, insufficient and inconsistent. They are reviewed, modified and combined, and are thus made ready for the long-overdue experimental tests. An essential mathematical preliminary, the theory of straight vortices, is discussed in an appendix. (Modified author abstract)

Descriptors :   *Vortex generators, *Tear gas, *Vortex shedding, Aerosols, Counterinsurgency, Vortices, Flow fields, Flow visualization

Subject Categories : Chemical, Biological and Radiological Warfare
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE