Free-boundary vacuum arc plasma jet expansion in a curved magnetic field
- Lawrence Berkeley National Lab., CA (United States)
- Tel Aviv Univ. (Israel). Electrical Discharge and Plasma Lab.
A hydrodynamic model of free-boundary vacuum arc plasma jet flow through a curved magnetic field has been developed. The plasma flow was modeled by sourceless steady-state equations, and the free boundary of the plasma was determined as a part of the solution of the gas-dynamic equations. It was found that the maximum plasma density shifts with respect to the centerline. The shift is maximum at the 90[degree] guide exit plane and for the case of low magnetic field. The maximum increase in longitudinal plasma velocity along the duct was shown to be a factor of three. The plasma distribution within the duct was analyzed experimentally using a deposition probe technique. The plasma jet expansion predicted by the model was compared with the experiment and a good qualitative agreement was found.
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6440091
- Journal Information:
- IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Vol. 27:2; ISSN ITPSBD; ISSN 0093-3813
- Country of Publication:
- United States
- Language:
- English
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DEPOSITION
EXPANSION
MAGNETIC FIELDS
MATERIALS
PLASMA DENSITY
PLASMA EXPANSION
PLASMA JETS
PLASMA SIMULATION
SIMULATION
SURFACE COATING