Electrically induced turbulence-the short duration spark
- 14 February 1989
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 22 (2) , 258-265
- https://doi.org/10.1088/0022-3727/22/2/004
Abstract
It is shown that the blast wave from a pulsed linear arc inherently leaves flows in its wake which propagate as a cylindrical version of a conventional hyrdodynamic 'puff'. These flows are generated by the transition of the initially cylindrical shock wave to an ultimate spherical configuration. Schlieren cinematography of the expanding flows yields results which are in good agreement with a theory based on a single blast wave model of wake flow formation. The results both support a previous hypothesis of Chomiak (1979) on the subject of spark ignition and establish a mechanism which accounts for the observed increase in the rate of combustion when short duration sparks are used.Keywords
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