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تسجيل مستخدم جديدRheology of inelastic hard spheres at finite density and shear rate
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Considering a granular fluid of inelastic smooth hard spheres we discuss the conditions delineating the rheological regimes comprising Newtonian, Bagnoldian, shear thinning, and shear thickening behavior. Developing a kinetic theory, valid at finite shear rates and densities around the glass transition density, we predict the viscosity and Bagnold coefficient at practically relevant values of the control parameters. The determination of full flow curves relating the shear stress $sigma$ to the shear rate $dotgamma$, and predictions of the yield stress complete our discussion of granular rheology derived from first principles.
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We present molecular dynamics simulations of pseudo hard sphere fluid (generalized WCA potential with exponents (50, 49) proposed by Jover et al. J. Chem. Phys 137, (2012)) using GROMACS package. The equation of state and radial distribution function
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We compute the rheological properties of inelastic hard spheres in steady shear flow for general shear rates and densities. Starting from the microscopic dynamics we generalise the Integration Through Transients (textsc{itt}) formalism to a fluid of
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We find in complementary experiments and event driven simulations of sheared inelastic hard spheres that the velocity autocorrelation function $psi(t)$ decays much faster than $t^{-3/2}$ obtained for a fluid of elastic spheres at equilibrium. Particl
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