Thermodynamics of Fluids Under Flow

Beschreibung

The book analyzes the thermodynamic aspects of several phenomena induced by flow in fluid systems. It begins with a macroscopic formulation of the thermodynamic theory, within the framework of extended irreversible thermodynamics, and compares it with other non-equilibrium approaches. These macroscopic results are examined from a microscopic point of view for different systems, namely, ideal gases, non-ideal gases and dilute polymer solutions. The thermodynamic approach is applied to the analysis of shear-induced changes in the phase diagram of polymer solutions, to shear-induced diffusion and to chemical reactions under flow. It is also compared with the dynamical approach based on the detailed evolution equations. The book may be especially useful for researchers in non-equilibrium thermodynamics or non-equilibrium statistical mechanics and in polymer physics or materials sciences.
The thennodynamics of fluids under shear flow is an active and very challenging topic in modem non-equilibrium thennodynamics and statistical mechanics. The interest is both theoretical and practical. From the theoretical point of view, the influence of the shear effects on the thennodynamic potentials requires the fonnulation of thennody namic theories beyond the local-equilibrium hypothesis; this is a field with many open questions, which fosters an active dialogue between macroscopic and microscopic theo ries, the latter based either on the kinetic theory of gases or on computer simulations of gases or liquids. Furthennore, it also requires an open discussion between thermodyna mics and hydrodynamics, because some of the phenomena observed may have a purely thennodynamic origin (due to the modification of some equations of state) or a purely in general there will be an interplay of both thennodynamic hydrodynamic origin, but and hydrodynamic effects. To clarify the fonnulation of a non-equilibrium thennody namics beyond the local-equilibrium regime, and its relationship with microscopic theories and with hydrodynamic theories currently represents an important frontier. From the practical point of view, many situations of technological interest are present in fluid systems under flow. Indeed, the modification of the thennodynamic equations of state for the chemical potential imply modifications in the phase diagram of substances in non-equilibrium states, or on the conditions of chemical equilibrium and stability.
This is a new approach based on the authors' successful theory for extended irreversible thermodynamics Includes supplementary material: sn.pub/extras

Autor*in

D. Jou

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Material Sciences Nonequilibrium Thermodynamics Polymer Physics Rhe Shear-Induced Diffusion entropy phase Transition thermodynamics fluid- and aerodynamics

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