Davide A. Hill

TL;DR: In this paper, the normal stress in the vorticity direction (Σ33) for a suspension undergoing simple shear was extracted from Acrivos et al. [Int. J. Multiphase Flow 19, 797] resuspension data in a Couette device.

TL;DR: An electrorheological (ER) fluid damper suitable for vibration and seismic protection of civil structures has been designed, constructed, and tested as mentioned in this paper, which consists of a main cylinder and a piston rod that pushes an ER fluid through a stationary annular duct.

TL;DR: In this article, it has been found that adding a small percentage of methyl ethyl ketone to methyl isobutyl kone and Cellosolve results in a significant increase in contrast.

TL;DR: In this paper, the authors used rotating plate viscometers and profilometry of the suspension surface deflection near a rotating rod to characterize a constant viscosity elastic fluid.

TL;DR: In this article, a chemical-type theory for wall slip in polymer melts is developed by modeling the exchange of bridging sites between two opposing polymeric and solid surfaces, and the model displays the following features: the polymer slips at all stresses; the slip velocity, vs, obeys time-free volume superposition and depends on both shear and normal stresses.