A hybrid approach for corona discharge in needle electrode configuration: in a large-scale space
- 1 April 2020
- journal article
- research article
- Published by IOP Publishing in Plasma Sources Science and Technology
- Vol. 29 (4), 045011
- https://doi.org/10.1088/1361-6595/ab708b
Abstract
Needle electrodes are widely used as the discharge electrode in charged particle-generating apparatus to study discharge characteristics due to their high efficiency. However, for the charged particle distribution of needle electrode corona discharge in a large-scale space (tens or even hundreds of centimeters), there is still a lack of an effective numerical simulation method. To solve this problem, a hybrid approach based on the combination of a hydrodynamic fluid model and an ion flow transport equation (ion drift model, based on the Kaptzov hypothesis) is put forward in this paper. The principle and implementation of the proposed method is introduced in detail. Further, the good consistency of the numerical simulation and a series of experiments under various applied voltages with two type sphere (radius 25 cm) apparatus, by comparing the charged particle density and discharge current, has demonstrated the accuracy and feasibility of the hybrid approach. This research provides an approach for the further study of corona discharge in a large-scale space, and implies the precise control potential in the application of low-temperature plasma, such as plasma material treatment, water treatments, gas disposal and so on.Funding Information
- the national key Research and Development Program of China (2016YFC0401002, 2016YFC0401006)
This publication has 34 references indexed in Scilit:
- Multiphysics simulation of corona discharge induced ionic windJournal of Applied Physics, 2013
- Numerical modelling of negative discharges in air with experimental validationJournal of Physics D: Applied Physics, 2010
- Corona discharge in the hyperbolic point-plane configuration: direct ionization criterion versus approximate formulationsIEEE Transactions on Dielectrics and Electrical Insulation, 2005
- Numerical solution of nonstationary charge coupled problemsJournal of Electrostatics, 1999
- Streamer propagation in airJournal of Physics D: Applied Physics, 1997
- A charge simulation based method for calculating corona loss on AC power transmission linesJournal of Physics D: Applied Physics, 1994
- Kinetic scheme of the non-equilibrium discharge in nitrogen-oxygen mixturesPlasma Sources Science and Technology, 1992
- Calculation of electric field and charge density for bipolar HVDC transmission lineElectrical Engineering in Japan, 1987
- Point-to-plane corona: Current-voltage characteristics for positive and negative polarity with evidence of an electronic componentJournal of Applied Physics, 1986
- Theory of negative corona in oxygenPhysical Review A, 1985