Rheology of hydrodynamically interacting concentrated hard disks

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Abstract
We have developed a novel Lagrangian–Eulerian numerical scheme to model the dynamics of dense hard‐disk suspensions with many‐body hydrodynamic interactions in an incompressible Newtonian solvent. A simple derivation of analytical solution of lubrication force between disks is given. Reasonable agreement of viscosity calculated by lattice–gas cellular automata and our method is obtained, despite the lack of Brownian forces in our work.