In 1972, V. Gallina and M. Omini of the Polytechnic of Turin proposed a phenomenological model for the thermal diffusion in liquid metals, explaining the isotope separation as provoked by a thermal force which is arising when a temperature gradient is established in the material. Here, we discuss this thermal force and its statistical origin from the bulk. We will see that it can be considered as a force of the form F = − S grad T, that is as a thermal/entropic force obtained from the derivative of the Helmholtz free energy with respect to the volume.
|Titolo:||A Thermal Force Drifting Particles Along a Temperature Gradient|
|Data di pubblicazione:||2016|
|Digital Object Identifier (DOI):||10.13140/RG.2.1.2347.7365|
|Appare nelle tipologie:||1.1 Articolo in rivista|
File in questo prodotto: