Abstract
The paper deals with the study of the transport processes in dispersed media. The diffusion of the nanoparticles in gases and liquids are considered. In all cases the Langevin approach is used when the evolution of a dispersed particle is described by the stochastic equation. A solution for the autocorrelation function of the nanoparticle velocity is constructed and additional random force acting on it in addition to the usual Langevin force is analyzed. The model of the diffusion of the nanoparticles ensemble is developed. In the last section the diffusion of the carbon nanotubes in liquids is discussed. It is considered the translational and rotational diffusion of the carbon nanotubes
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