Shear and Bulk Acceleration Viscosities in Simple Fluids.

  title={Shear and Bulk Acceleration Viscosities in Simple Fluids.},
  author={Johannes Renner and Matthias Schmidt and Daniel de las Heras},
  journal={Physical review letters},
  volume={128 9},
Inhomogeneities in the velocity field of a moving fluid are dampened by the inherent viscous behavior of the system. Both bulk and shear effects, related to the divergence and the curl of the velocity field, are relevant. On molecular time scales, beyond the Navier-Stokes description, memory plays an important role. Using molecular and overdamped Brownian dynamics many-body simulations, we demonstrate that analogous viscous effects act on the acceleration field. This acceleration viscous… 
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