Instead of the shear viscosity in the Navier-Stokes equation we accounted for a small model friction force −nv/τ , where v is the hydrodynamic velocity.
Symmetry breaking and coarsening of clusters in a prototypical driven granular gas
Roughness-driven contributions to hydrodynamic ﬂows, energy dissipation, and friction force are calculated in a wide range of parameters.
Surface Roughness and Effective Stick-Slip Motion
In summary, we calculated roughness-driven contributions to the hydrodynamic ﬂows, energy dissipation, and the friction force in a wide range of parameters.
Surface Roughness and Effective Stick-Slip Motion
Hydrodynamical Euler equations involving a friction force −ξ (|u|)u have appeared in various contexts for different reasons.
Nonlinear mean field Fokker-Planck equations. Application to the chemotaxis of biological populations
As a conclusion, our measurements of the friction coefﬁcient nicely supplement the results reported by Cassar et al and we interpret our measurements of the dilatancy in the framework of the hydrodynamical model proposed by Bocquet et al. .
Friction and dilatancy in immersed granular matter
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