Kinetic theory of dusty plasmas II. Dust–plasma particle collision integrals

2000 ◽  
Vol 7 (2) ◽  
pp. 554-563 ◽  
Author(s):  
V. N. Tsytovich ◽  
U. de Angelis
2001 ◽  
Vol 8 (4) ◽  
pp. 1141 ◽  
Author(s):  
V. N. Tsytovich ◽  
U. de Angelis

2005 ◽  
Vol 277-279 ◽  
pp. 939-944
Author(s):  
Hae Ryung Kim ◽  
Jaihyun Seu ◽  
Hamid Arastoopour

Nanosize particle flow is significantly affected by inter-particle force. Due to the inter-particle force, the most significant characteristic of nanosize particle flow may become the formation of agglomerates or clusters which considerably affects the flow patterns. The formation of agglomerates or clusters results in a reduction in the number and an increase in the size of particles, both of which directly affect the frequency of inter-particle collisions and, in turn, the particle phase properties such as viscosity and pressure, as well as gas/particle drag force in gas/particle flow systems. In this present work, we focus our attention on the verification of nanosize particle flow behavior due to the formation of agglomerates or clusters under different fluctuation of flow and inelasticity of particle collision. By extending the application of the cohesive model using kinetic theory to nanosize particle flow system, we performed the homogeneous simple shear flow analysis using various fluctuation energy and restitution coefficient. The predicted flow properties, such as particle diameter growth, agreed well with the expected trends.


2004 ◽  
Vol 11 (2) ◽  
pp. 496-506 ◽  
Author(s):  
V. N. Tsytovich ◽  
U. de Angelis

2002 ◽  
Vol 9 (6) ◽  
pp. 2497-2506 ◽  
Author(s):  
V. N. Tsytovich ◽  
U. de Angelis
Keyword(s):  

2007 ◽  
Vol 73 (5) ◽  
pp. 793-810 ◽  
Author(s):  
N. ARINAMINPATHY ◽  
J. E. ALLEN ◽  
J. R. OCKENDON

AbstractThe study of dusty plasmas is of significant practical use and scientific interest. A characteristic feature of dust grains in a plasma is that they are typically smaller than the electron Debye distance, a property which we exploit using the technique of matched asymptotic expansions. We first consider the case of a spherical dust particle in a stationary plasma, employing the Allen–Boyd–Reynolds theory, which assumes cold, collisionless ions. We derive analytical expressions for the electric potential, the ion number density and ion velocity. This requires only one computation that is not specific to a single set of dust–plasma parameters, and sheds new light on the shielding distance of a dust grain. The extension of this calculation to the case of uniform ion streaming past the dust grain, a scenario of interest in many dusty plasmas, is less straightforward. For streaming below a certain threshold we again establish asymptotic solutions but above the streaming threshold there appears to be a fundamental change in the behaviour of the system.


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