3 research outputs found
Externally Driven Macroscopic Systems: Dynamics Versus Thermodynamics
Experience collected in mesoscopic dynamic modeling of externally driven
systems indicates absence of potentials that could play role of equilibrium or
nonequilibrium thermodynamic potentials yet their thermo-dynamics-like modeling
is often found to provide a good description, good understanding, and
predictions that agree with results of experimental observations. This apparent
contradiction is explained by noting that the dynamic and the
thermodynamics-like investigations on a given mesoscopic level of description
are not directly related. Their relation is indirect. They both represent two
aspects of dynamic modeling on a more microscopic level of description. The
thermodynamic analysis arises in the investigation of the way the more
microscopic dynamics reduces to the mesoscopic dynamics (reducing dynamics) and
the mesoscopic dynamic analysis in the investigation of the result of the
reduction (reduced dynamics)