On the space-charge boundary layer inside the nozzle of a cutting torch

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A numerical study of the space-charge sheath adjacent to the nozzle wall of a cutting torch is presented. The hydrodynamic model corresponds to a collision-dominated sheath and does not assume cold ions, so drift-diffusion-type equations are used. Also an improved expression for the ion-neutral mome...

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Detalles Bibliográficos
Autores principales: Prevosto, L., Kelly, H., Mancinelli, B.
Formato: Artículo publishedVersion
Publicado: 2009
Materias:
Average field
Biasing voltages
Breakdown threshold
Cold ions
Cutting torch
Drift diffusion
Electron densities
Gas breakdown
Hydrodynamic model
Ion collisions
Ion density
Ion velocity
Mean-free path
Momentum equation
Nozzle exits
Nozzle wall
Numerical studies
Plasma edges
Poisson's equation
Space charges
Space-charge sheath
Tangential components
Thermal conduction
Zero values
Carrier concentration
Electric fields
Electric potential
Electron density measurement
Fluid dynamics
Ions
Nozzles
Plasma turbulence
Poisson equation
Electron temperature
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00218979_v105_n12_p_Prevosto
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00218979_v105_n12_p_Prevosto_oai
Aporte de:
Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

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