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Название: Friction Coefficients and Directed Motion of Asymmetric Test Particles
Авторы: Handrich K., Ludwig F.-P.
Journal of Statistical Physics. Vol. 86, Nos. 5/6. 1997. p. 1067-1087.
The behavior of a test particle in a rarefied gas of classical particles is investigated, considering difli~rent interaction mechanisms (specular and diffuse reflection, respectivelyL For large mass ratio between test and gas particles, analytical expressions for the linear friction coefficient are derived. Moreover, the existence of directed motion of asymmetric test particles with distinct initial conditions (but in the absence of any gradients) is shown. The analytical results are supported by a numerical simulation technique applicable to systems with any mass ratio, which is described here in detail.