Transient and Continuous Glow Discharges in He, H₂ and N₂ at Sub-Atmospheric Pressure

Pulsed RF discharges, glow and filamentary mode at atmospheric pressure in argon

The properties of a pulsed radio frequency capacitive discharge are investigated at atmospheric pressure in argon. The discharge can operate in two different modes: a homogeneous glow discharge or turn into filaments. By pulsing the 13.56 MHz generator both the filamentary and the glow modes can be selected depending on the pulse width and period. For a 5μs pulse width (∼70 RF cycles in the pul...

Transitions between corona, glow, and spark regimes of nanosecond repetitively pulsed discharges in air at atmospheric pressure

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One-dimensional simulation of multi pulse phenomena in dielectric-barrier atmospheric-pressure glow discharges

The dielectric-barrier configuration is commonly used to generate uniform, highly non-equilibrium atmospheric-pressure glow discharges. Although recent research has improved our understanding of these discharges, several questions relating to the structure and transient characteristics of the discharge remain to be answered. We employ a self-consistent, one-dimensional, model to simulate these ...

Two Phase Heat Transfer Characteristics in a Vertical Small Diameter Tube at Sub Atmospheric Pressure

Two-phase heat transfer is experimentally examined through vertical small diameter tubes, D =1.45 and 2.8 mm using water under a pressure of 50 to 81 kPa and a natural circulation condition. The pool boiling correlation by Stephan-Abdelsalam and the thermosyphon boiling correlation by Imura, et al. predict the measured experimental data in the 2.8 mm tube with an error of -30%. A large heat tra...

Electro-Hydrodynamics of Micro-Discharges in Gases at Atmospheric Pressure