Abstract
A new theoretical approach to describe pre-hydrodynamic stages of evolution in nonequilibrium fluids is presented. The local density, velocity, and temperature fields are expressed as integrals over Green's functions that depend on initial-state ensemble averages of dynamical quantities. For systems in which the initial states are nonuniform in only one spatial direction, explicit expressions for the Green's functions are derived in terms of initial-state ensemble averages of moments of particle displacements and products of particle velocities and particle displacements.
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Kincaid, J.M., Cohen, E.G.D. Nano- and Pico-Scale Transport Phenomena in Fluids. Journal of Statistical Physics 109, 361–371 (2002). https://doi.org/10.1023/A:1020433725023
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DOI: https://doi.org/10.1023/A:1020433725023