Finite element analysis of ring-shaped emission profile in plasma bullet
Source: Appl. Phys. Lett. 96, 041501 (2010); doi:10.1063/1.3298639
Published 26 January 2010
Using a one-way coupled model of neutral gas flow and plasma dynamics we report a mechanism to explain the ring-shaped emission pattern that has been observed experimentally in plasma bullets at atmospheric pressure. We solve a fluid model with the local field approximation in one-dimensional cylindrical coordinates, corresponding to a cross-section of a plasma bullet. Pulselike uniform electric field is assumed to be applied perpendicular to the simulation domain. Time and spatially resolved spectroscopic measurements support the simulation results.
©2010 American Institute of Physics
| History: | Received 23 September 2009; accepted 5 January 2010; published 26 January 2010 |
| Permalink: |
http://link.aip.org/link/?APPLAB/96/041501/1 |
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