Generalized equations of hydrodynamics in fractional derivatives
Abstract
We present a general approach for obtaining the generalized transport equations with fractional derivatives using the Liouville equation with fractional derivatives for a system of classical particles and the Zubarev non-equilibrium statistical operator (NSO) method within the Gibbs statistics. We obtain the non-Markov equations of hydrodynamics for the non-equilibrium average values of densities of particle number, momentum and energy of liquid in a spatially heterogeneous medium with a fractal structure. For isothermal processes (), the non-Markov Navier-Stokes equation in fractional derivatives is obtained. We consider models for the frequency dependence of memory function (viscosity), which lead to the Navier-Stokes equations in fractional derivatives in space and time.
Keywords
Cite
@article{arxiv.2308.14194,
title = {Generalized equations of hydrodynamics in fractional derivatives},
author = {P. Kostrobij and B. Markovych and I. Ryzha and M. Tokarchuk},
journal= {arXiv preprint arXiv:2308.14194},
year = {2023}
}
Comments
23 pages