Open AccessTransport processes in Newtonin and non-Newotonian fluids and fluctuation-dissipation theorems
Author(s) -
V. Ya. Rudyak
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1677/1/012152
Subject(s) - nanofluid , dissipative system , microviscosity , dissipation , non equilibrium thermodynamics , statistical physics , rheology , nonlinear system , physics , mass transport , momentum (technical analysis) , thermodynamics , thermal , classical mechanics , engineering physics , finance , quantum mechanics , economics , fluorescence
The subject of this paper is molecular modelling of the transport processes in liquids including nanofluids. The weak and strong nonequilibrium processes are considered. In the first case, the corresponding fluctuation-dissipation theorems are formulated. These theorems determine the relation between the dissipative processes and equilibrium thermal fluctuations of the mass, momentum, and energy in the molecular system. Two different formulations of these theorem are discussed in detail. Various systems are considered: molecular liquids, nanofluids, turbulent liquids, fluids in confined conditions, and microviscosity in biomembranes. In the last part the nonlinear transport processes and rheology of the non-Newtonian fluids are discussed.