Physics – Fluid Dynamics
Scientific paper
2005-05-18
Physics
Fluid Dynamics
Scientific paper
10.1103/PhysRevLett.95.165001
We explain a mechanism for branching of a planar negative front. Branching occurs as the result of a balance between the destabilizing effect of impact ionization and the stabilizing effect of electron diffusion on ionization fronts. The dispersion relation for transversal perturbation is obtained analytically and reads: $s = |k|/[2 (1 + |k|)] - D |k|^2$, where $D$, which is assumed to be small, is the ratio between the electron diffusion coefficient and the intensity of the externally imposed electric field. We estimate the spacing $\lambda$ between streamers in a planar discharge and deduce a scaling law $\lambda \sim D^{1/3}$.
Arrayás Manuel
Fontelos Marco A.
Trueba Jose L.
No associations
LandOfFree
On the mechanism of branching in negative ionization fronts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the mechanism of branching in negative ionization fronts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the mechanism of branching in negative ionization fronts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-710406