Linear-geometry electric-field probe for DC corona measurements and application to field distribution in wire-to-plane geometry

Zebboudj, Y.; Ikene, R.; Hartmann, G.

doi:10.1051/epjap:1999171

Cited by 6 publications

(5 citation statements)

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“…Integration of equation (15) gives the values of the space charge density along field lines. As initial values of E we took those gotten in step 2.…”

Section: Methods Of Analysismentioning

confidence: 99%

“…As initial values of E we took those gotten in step 2. For the resolution of equation (15), we used the modified method of Euler.…”

Section: Methods Of Analysismentioning

confidence: 99%

“…The potential can be taken equal zero if the borders are to infinity. The computational domain of the considered configuration is limited as follows: (a) the plane length is taken equal to the plane length experimented at the laboratory [15]; (b) the border above the corona wire is taken equal to λh, where λ is a multiplied factor and h the interelectrode space as shown in Figure 1. The suitable value of λ is obtained when the results of calculus become stable, i.e.…”

Section: Boundary Conditionsmentioning

confidence: 99%

“…The linear biased probe theory is fully developed in [15], but will be briefly recalled in this section. The probe collector collects a current I 0 resulting from the corona discharge.…”

Section: Experimental Apparatus and Design Of The Probe Systemmentioning

confidence: 99%

“…The ratio a/g = 19.1 mm is approximately equal to the ratio of the earlier probes [16] where a/g = 18. Moreover, the new probe collector of current is 177 mm long and 1.91 mm wide; the accuracy of the current ratio I/I 0 is thus improved and the end-effects are reduced [15].…”

Section: Experimental Apparatus and Design Of The Probe Systemmentioning

confidence: 99%

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Finite-element analysis of positive and negative corona discharge in wire-to-plane system

Oussalah

Zebboudj

2006

Eur. Phys. J. Appl. Phys.

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This paper deals with positive and negative corona discharge in atmospheric air using a wire-toplane system. The Poisson's equation is solved numerically using the finite-element method and the current continuity equation. The space charge density is updated using the simplified method of characteristics, where the ion diffusion is neglected. The numerical model takes into account the avalanche length of the corona discharge and the potential corresponding to the minimum ionisation field is directly introduced in the method on the border of the ionisation region. The end geometry of the linear biased probe without wraparound bias plates has been adapted to a wire-to-plane system for use in DC corona discharge. The current density and the electric field are measured; their spatial distributions are given and compared with the computed values. The agreement between the calculated values and those obtained experimentally is satisfactory. The per unit electric field and current density are also represented by a unique function.

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“…Integration of equation (15) gives the values of the space charge density along field lines. As initial values of E we took those gotten in step 2.…”

Section: Methods Of Analysismentioning

confidence: 99%

“…As initial values of E we took those gotten in step 2. For the resolution of equation (15), we used the modified method of Euler.…”

Section: Methods Of Analysismentioning

confidence: 99%

Section: Boundary Conditionsmentioning

confidence: 99%

“…The linear biased probe theory is fully developed in [15], but will be briefly recalled in this section. The probe collector collects a current I 0 resulting from the corona discharge.…”

Section: Experimental Apparatus and Design Of The Probe Systemmentioning

confidence: 99%

Section: Experimental Apparatus and Design Of The Probe Systemmentioning

confidence: 99%

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