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Effetti delle condizioni iniziali su una scarica a filamento

Effetti delle condizioni iniziali su una scarica a filamento

Aicha Flitti

90,69 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Estudios étnicos
ISBN:
9786208962791
90,69 €
IVA incluido
Disponible

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Questo lavoro di ricerca è dedicato alla modellazione numerica 2D del trasporto di particelle (elettroni e ioni positivi) in una scarica ad alta pressione o in una scarica a flusso positivo. Gli elettrodi hanno una configurazione planare e il gas utilizzato è l’azoto. È stato scelto un modello di fluido (accoppiamento dei primi due momenti dell’equazione di Boltzmann: equazione di continuità ed equazione di trasferimento della quantità di moto all’equazione di Poisson). La densità di corrente nelle equazioni di continuità è stata calcolata utilizzando lo schema Flux de Transport Corrigé FCT. Lo schema è stato sviluppato da Boris e Book. L’equazione di Poisson è risolta in 2D con il metodo della trasformata veloce di Fourier. È stato studiato l’effetto delle condizioni iniziali (effetto del fondo di preionizzazione, effetto della dispersione radiale ed effetto della tensione sulla propagazione della scarica a filamento positivo).

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