Particle charge fluctuation and its consequences on aerosol dynamics in dusty plasmas: from continuous to discrete statistical models - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Plasma Physics and Controlled Fusion Année : 2020

Particle charge fluctuation and its consequences on aerosol dynamics in dusty plasmas: from continuous to discrete statistical models

Résumé

In this work we investigated different approaches and models used for the estimation of the charge fluctuation of solid particles in dusty plasmas. We compared the charge distributions inferred from these models and analysed the consequences in terms of coagulation kinetics and particle size distributions. We especially showed that taking explicitly into account the discrete nature of the charging process along with the enhancement of ion flux due to ion-neutral elastic collisions result in significantly larger values for the fractions of neutral and positively charged particles, which affects the coagulation kinetics and the predicted values of particle density. We also showed, by comparing sectional and modal approaches, that the typical size-distributions obtained in the studied plasmas may be well described using a bimodal distribution with a single size nucleation mode and a Gaussian large-size mode. Such a possibility enables a great simplification of the aerosol dynamic description and open up an interesting perspective as far as multidimensionnal self consistent modeling of dusty plasmas is concerned.
Fichier principal
Vignette du fichier
papier_armelle_v6.pdf (2.14 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02394842 , version 1 (10-12-2019)

Identifiants

Citer

A. Michau, S Prasanna, S Longo, K. Hassouni. Particle charge fluctuation and its consequences on aerosol dynamics in dusty plasmas: from continuous to discrete statistical models. Plasma Physics and Controlled Fusion, 2020, Special Issue Featuring the Invited Talks from the 46th EPS Conference on Plasma Physics, Milan, 8-12 July 2019, 62 (1), pp.014002. ⟨10.1088/1361-6587/ab469f⟩. ⟨hal-02394842⟩
41 Consultations
76 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More