Finite element analysis of ring-shaped emission profile in plasma bullet

被引：128

作者：

Sakiyama, Yukinori ^{[1
]}

Graves, David B. ^{[1
]}

Jarrige, Julien ^{[2
]}

Laroussi, Mounir ^{[2
]}

机构：

[1] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA

[2] Old Dominion Univ, Laser & Plasma Engn Inst, Norfolk, VA 23529 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 04期

关键词：

finite element analysis; plasma jets; plasma simulation; time resolved spectra;

D O I：

10.1063/1.3298639

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页数：3

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