Comparative MHD analysis of IPD plasma accelerator work with different electrode polarization
During the Impulse Plasma Deposition (IPD) process of surface engineering plasma is generated in the working gas due to a high-voltage high-current discharge, ignited within an interelectrode region of a coaxial accelerator. A continually growing demand for deeper understanding of the process was th...
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| Datum: | 2008 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2008
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| Schriftenreihe: | Вопросы атомной науки и техники |
| Schlagworte: | |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/110777 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Comparative MHD analysis of IPD plasma accelerator work with different electrode polarization / M. Rabiński, K. Zdunek // Вопросы атомной науки и техники. — 2008. — № 6. — С. 98-100. — Бібліогр.: 6 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | During the Impulse Plasma Deposition (IPD) process of surface engineering plasma is generated in the working gas due to a high-voltage high-current discharge, ignited within an interelectrode region of a coaxial accelerator. A continually growing demand for deeper understanding of the process was the reason to investigate the plasma flow phenomena numerically. The paper reports computational studies of the IPD accelerator with internal cathode. The detailed structure of the discharge region was described by a two-dimensional, two-fluid magnetohydrodynamic approach. In particular, the presented computations suggest the paraboloidal shape of discharge region for device work with the internal cathode. It has been found that for the considered IPD discharge parameters plasma dynamics differs from commonly accepted pattern of concave current-sheet for negative polarization of electrodes (rod cathode and external tube anode). |
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