Continuum-plasma solution surrounding nonemitting spherical bodies
Open Access
- 1 June 2009
- journal article
- research article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 16 (6), 062101
- https://doi.org/10.1063/1.3143038
Abstract
The classical problem of the interaction of a nonemitting spherical body with a zero mean-free-path continuum plasma is solved numerically in the full range of physically allowed free parameters (electron Debye length to body radius ratio, ion to electron temperature ratio, and body bias), and analytically in rigorously defined asymptotic regimes (weak and strong bias, weak and strong shielding, thin and thick sheath). Results include current-voltage characteristics as well as floating potential and capacitance, for both continuum and collisionless electrons. Our numerical computations show that for most combinations of physical parameters, there exists a closest asymptotic regime whose analytic solutions are accurate to 15% or better.Keywords
This publication has 21 references indexed in Scilit:
- Complex (dusty) plasmas: Current status, open issues, perspectivesPhysics Reports, 2005
- An experimental and theoretical study of the high-pressure dusty plasma created by a stationary e-beamPlasma Physics and Controlled Fusion, 2005
- Principles of Plasma DiagnosticsPublished by Cambridge University Press (CUP) ,2002
- Experimental studies of the large Debye length probe theory in a continuum plasmaJournal of Applied Physics, 1977
- Electric Probes in Stationary and Flowing PlasmasPublished by Springer Science and Business Media LLC ,1975
- Verification of Static Spherical Probe Theory in a Moving High-Pressure PlasmaJournal of Applied Physics, 1972
- Theory of a spherical electrostatic probe in a continuum gas - An exact solutionAIAA Journal, 1970
- Continuum Electrostatic Probe Theory for Large Sheaths on Spheres and CylindersJournal of Applied Physics, 1969
- Asymptotic Theory of Spherical Electrostatic Probes in a Slightly Ionized, Collision-Dominated GasPhysics of Fluids, 1963
- Continuum Theory of Spherical Electrostatic ProbesPhysics of Fluids, 1963