Open AccessExperimental investigation on the evolution of dielectric barrier discharge plasma induced flow at different operating pressures
Author(s) -
Yumin Cheng,
Wei Nie,
Xueke Che,
Tian Xia,
Hou Zhong-jie,
Zhou Peng-Hui
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.104702
Subject(s) - vortex , dielectric barrier discharge , plasma , particle image velocimetry , materials science , mechanics , flow (mathematics) , kármán vortex street , dielectric , physics , turbulence , reynolds number , optoelectronics , quantum mechanics
The evolutions of dielectric barrier discharge (DBD) plasma induced starting vortex and the transformation of the DBD plasma induced flow field at different operating pressures are obtained by particle image velocimetry. The results show that the starting vortex will diffuse to the embedded electrode side and then disappear, and the diffusivity will decrease as the time goes on at high operating pressure. But the starting vortex will not change in location, and it will not disappear at low operating pressure. As the operating pressure decreases, the starting time of plasma induced flow field decreases, the ordinate orientation of the induced flowfield increases, and the landscape orientation of the induced flowfield decreases. The form of the induced streamline will come through L→U→V as the pressure decreases. There is no induced vortex in the form of L. There are two induced vortexes in the form of U which lay in the middle and on the right hand of the form U respectively, and there is one induced vortex in the form of V which lays in the middle of form V.