The effect of dust charge variation, due to ion flow and electron depletion, on dust levitation

Journal Article · Tue Nov 29 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3659747· OSTI ID:21612252

Land, Victor; Douglass, Angela; Ke, Qiao; Matthews, Lorin; Hyde, Truell ^[1]

---

1. Center for Astrophysics, Space Physics and Engineering Research, Baylor University, Waco, TX, 76798 (United States)

Using a fluid model, the plasma densities, electron temperature and ion Mach number in front of a powered electrode in different plasma discharges is computed. The dust charge is computed using OML theory for Maxwellian electrons and ions distributed according to a shifted-Maxwellian. By assuming force balance between gravity and the electrostatic force, the dust levitation height is obtained. The importance of the dust charge variation is investigated.

• OSTI ID: 21612252
• Journal Information: AIP Conference Proceedings, Vol. 1397, Issue 1; Conference: 6. international conference on the physics of dusty plasmas, Garmisch-Partenkirchen (Germany), 16-20 May 2011; Other Information: DOI: 10.1063/1.3659747; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DUSTS
ELECTRODES
ELECTRON COLLISIONS
ELECTRON TEMPERATURE
ELECTRONS
ELECTROSTATICS
GLOW DISCHARGES
GRAVITATION
IONS
LEVITATION
MACH NUMBER
PLASMA
PLASMA DENSITY
PLASMA FLUID EQUATIONS
PLASMA WAVES
VARIATIONS
BOLTZMANN-VLASOV EQUATION
CHARGED PARTICLES
COLLISIONS
DIFFERENTIAL EQUATIONS
DIMENSIONLESS NUMBERS
ELECTRIC DISCHARGES
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
LEPTONS
PARTIAL DIFFERENTIAL EQUATIONS
VELOCITY