Ferrohydrodynamics: testing a new magnetization equation
Abstract
A new magnetization equation recently derived from irreversible thermodynamics is employed to the calculation of an increase of ferrofluid viscosity in a magnetic field. Results of the calculations are compared with those obtained on the basis of two well-known magnetization equations. One of the two was obtained phenomenologically, another one was derived microscopically from the Fokker-Planck equation. It is shown that the new magnetization equation yields a quite satisfactory description of magnetiviscosity in the entire region of magnetic field strength and the flow vorticity. This equation turns out to be valid -- like the microscopically derived equation but unlike the former phenomenological equation -- even far from equilibrium, and so it should be recommended for further applications.
Keywords
Cite
@article{arxiv.cond-mat/0106415,
title = {Ferrohydrodynamics: testing a new magnetization equation},
author = {Mark I. Shliomis},
journal= {arXiv preprint arXiv:cond-mat/0106415},
year = {2009}
}
Comments
4 pages, 3 figures, Submitted to Phys. Rev. E