Sound damping in ferrofluids: Magnetically enhanced compressional viscosity
arXiv:cond-mat/0211297 · doi:10.1103/PhysRevE.67.031201
Abstract
The damping of sound waves in magnetized ferrofluids is investigated and shown to be considerably higher than in the non-magnetized case. This fact may be interpreted as a field-enhanced, effective compressional viscosity -- in analogy to the ubiquitous field-enhanced shear viscosity that is known to be the reason for many unusual behavior of ferrofluids under shear.
5 pages