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Descripción
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| The acceleration of a current-free plasma in a divergent magnetic nozzle with fully magnetically guided electrons is discussed. Ion momentum is gained from the electron thermal pressure, via the electrostatic self- eld. Except for very large magnetic elds, ion magnetization is weak and ion streamlines deviate from magnetic streamlines. As a consequence the local ambipolar condition does not hold, and local electric currents are formed. Azimuthal ion and electron currents are evaluated. The acceleration eciency is computed. | |
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Internacional
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Si |
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Entidad
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American Institute of Aeronautics and Astronautics |
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Lugar
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45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference |
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Páginas
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Referencia/URL
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AIAA 2009-5361 |
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Tipo de publicación
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Technical paper |