| Autor: |
Thomas M. York, P. J. Turchi, P. G. Mikellides, I. G. Mikellides |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/1.1358026 |
| Popis: |
Numerical simulations of plasma flows through magnetic guide-fields have been conducted to provide critical understanding and detailed design guidance to near-future experimental efforts. The plasma flow is guided by an applied magnetic field arrangement that is sustained by two magnet coils. In the present effort the two magnet-coil sections have been simulated separately. Quasi-steady modeling using helium propellant with classical resistivity demonstrates a nearly-isentropic expansion of the confined plasma through the magnetic-nozzle section, to high exhaust speeds (>270 km/sec). At the inlet of the nozzle—near the plasma-field interface—the development of non-uniformities in the magnetic field is uncovered. For T0=100 eV, as much as 50% of the mass flux penetrates the current-layer across the magnetic field lines. Preliminary simulations of hypersonic plasma flow (M=8.8) through the magnetic-diffuser section, display characteristic wave patterns as a result of shock and expansion wave reflections fro... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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