Predicting the Vortex Viscosity of a Ferrofluid Karen Pukalo
The vortex viscosity of a ferrofluid is calculated using a two-dimensional approach using Comsol Multiphysics to perform the numerical calculations. This approach is a simplification of one used Feng, et al., where the ratio of vortex viscosity and the shear viscosity of plain fluid is a function of the volume fraction of the ferrofluid. Feng, S., Graham, A.L., Abbott, J.R. & Brenner, H. 2006. Antisymmetric stresses in suspensions: vortex viscosity and energy dissipation. J. Fluid Mech 563, 97-122. |
