Hydrodynamics and collision-dominated transport are crucial to understand the slow dynamics of many correlated quantum liquids. The ratio eta/s of the shear viscosity eta to the entropy density s is uniquely suited to determine how strongly the excitations in a quantum fluid interact. We determine eta/s in clean undoped graphene using a quantum kinetic theory. As a result of the quantum critica...

The interactions of deformable drops in cavity flows is studied numerically in the limit of low Reynolds numbers for a two-dimensional model. Flow in a square cavity is driven by the steady motion of one of the walls. Deformable drops will migrate across streamlines until they reach an equilibrium trajectory or equilibrium position; the rate and direction of migration depend on both the viscosi...

Abstract A CFD study on horizontal oil-water flow with high viscosity ratio (O(103)) was conducted the VOF multiphase model in conjunction SST k–? turbulence scheme. Suitable settings of models and numerical solution were highlighted. Particularly, wall contact angle is shown to be important regarding oil fouling phenomenon commonly seen water-lubricated transportation highly viscous oil. Satis...