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物理学报. 2007, 56(6): 3332-3336.
doi: 10.7498/aps.56.3332.
介质阻挡放电中两种不同时空对称性的六边形发光斑图
- 收稿日期: 2006-09-04
- 修回日期: 2006-09-29
- 刊出日期: 2007-03-05
English Abstract
Two kinds of hexagon emission patterns with different spatio-temporal symmetry in dielectric barrier discharge
- Received Date:
04 September 2006
- Accepted Date:
29 September 2006
- Published Online:
05 March 2007
Abstract: Two kinds of emission hexagonal patterns with different spatio-temporal symmetry are observed in lower and higher applied voltage range respectively by using a dielectric barrier discharge device with water electrodes. The spatial wavelength and filament diameter of the hexagon in higher applied voltage range are larger than that in lower voltage range. The hexagon in higher applied voltage range has a brighter background，while no background exists in the hexagon in lower applied voltage range. The spatio-temporal dynamics of the two kinds of hexagon patterns is investigated. It is found that the hexagonal pattern in lower voltage range is an interlacing of two rectangular sublattices, which have a time sequence inversion behavior. The filaments in the hexagon in higher voltage range discharge simultaneously. The influence of the wall charges on the spatio-temporal dynamics of the emission patterns is discussed.
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