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PLASMA, HYDRO- AND GAS DYNAMICS
On real statistics of relaxation in gases
Yu. E. Kuzovlev Donetsk Free Statistical Physics Laboratory, Donetsk Institute for Physics and Engineering, National Academy of Sciences of Ukraine, 83114, Donetsk, Ukraine
Abstract:
By example of a particle interacting with ideal gas, it is shown that the statistics of collisions in statistical mechanics at any value of the gas rarefaction parameter qualitatively differ from that conjugated with Boltzmann's hypothetical molecular chaos and kinetic equation. In reality, the probability of collisions of the particle in itself is random. Because of that, the relaxation of particle velocity acquires a power-law asymptotic behavior. An estimate of its exponent is suggested on the basis of simple kinematic reasons.
Received: 10.12.2015
Citation:
Yu. E. Kuzovlev, “On real statistics of relaxation in gases”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:4 (2016), 258–262; JETP Letters, 103:4 (2016), 234–237
Linking options:
https://www.mathnet.ru/eng/jetpl4866 https://www.mathnet.ru/eng/jetpl/v103/i4/p258
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Abstract page: | 191 | Full-text PDF : | 40 | References: | 50 | First page: | 12 |
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