Propagation of an atmospheric pressure plasma plume

摘要: The “plasma bullet” behavior of atmospheric pressure plasma plumes has recently attracted significant interest. In this paper, a specially designed jet device is used to study phenomenon. It found that helium primary can propagate through the wall dielectric tube and keep propagating inside (secondary plasma). High-speed photographs show disappears before secondary starts propagate. Both at hypersonic speed. Detailed studies on dynamics local electric field induced by charges surface plays an important role in ignition plasma. This indicates propagation may be attributed bulletlike volume.