Modeling agglomeration of dust particles in plasma

L.S. Matthews, V. Land, Q. Ma, J.D. Perry, T.W. Hyde

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

3 Citaten (Scopus)

Samenvatting

The charge on an aggregate immersed in a plasma environment distributes itself over the aggregate's surface; this can be approximated theoretically by assuming a multipole distribution. The dipole-dipole (or higher order) charge interactions between fractal aggregates lead to rotations of the grains as they interact. Other properties of the dust grains also influence the agglomeration process, such as the monomer shape (spherical or ellipsoidal) or the presence of magnetic material. Finally, the plasma and grain properties also determine the morphology of the resultant aggregates. Porous and fluffy aggregates are more strongly coupled to the gas, leading to reduced collisional velocities, and greater collisional cross sections. These factors in turn can determine the growth rate of the aggregates and evolution of the dust cloud. This paper gives an overview of the numerical and experimental methods used to study dust agglomeration at CASPER and highlights some recent results.

Originele taal-2Engels
TitelDusty/Complex Plasmas: Basic and Interdisciplinary Research: Sixth International Conference on the Physics of Dusty Plasmas, Garmisch-Partenkirchen, Germany, 16-20 May 2011
Plaats van productieNew York
UitgeverijAmerican Institute of Physics
Pagina's60-65
Aantal pagina's6
ISBN van geprinte versie9780735409675
DOI's
StatusGepubliceerd - 2011
Extern gepubliceerdJa
Evenement6th International Conference on the Physics of Dusty/Complex Plasmas: Basic and Interdisciplinary Research, ICPDP6 - Garmisch-Partenkirchen, Duitsland
Duur: 16 mei 201120 mei 2011

Publicatie series

NaamAIP Conference Proceedings
Volume1397

Congres

Congres6th International Conference on the Physics of Dusty/Complex Plasmas: Basic and Interdisciplinary Research, ICPDP6
Land/RegioDuitsland
StadGarmisch-Partenkirchen
Periode16/05/1120/05/11
Ander6th International Conference on the Physics of Dusty Plasmas

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