Interplay of discharge and gas flow in atmospheric pressure plasma jets

被引：70
作者：
Jiang, Nan [1 ]
Yang, JingLong [2 ]
He, Feng [2 ]
Cao, Zexian [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matters, Beijing 100190, Peoples R China
[2] Tsinghua Univ, Sch Aerosp, Beijing 100084, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 09期
关键词：
ACTUATORS;
D O I：
10.1063/1.3581067
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Interplay of discharge and gas flow in the atmospheric pressure plasma jets generated with three different discharge modes [N. Jiang, A. L. Ji, and Z. X. Cao, J. Appl. Phys. 106, 013308 (2009); N. Jiang, A. L. Ji, and Z. X. Cao, J. Appl. Phys. 108, 033302 (2010)] has been investigated by simultaneous photographing of both plasma plumes and gas flows in the ambient, with the former being visualized by using an optical schlieren system. Gas flow gains a forward momentum from discharge except for the case of overflow jets at smaller applied voltages. Larger applied voltage implies an elongated plasma jet only for single-electrode mode; for dielectric barrier discharge jet the plume length maximizes at a properly applied voltage. These findings can help understand the underlying processes, and are useful particularly for the economic operation of tiny helium plasma jets and jet arrays. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3581067]
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页数：6
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