Hydrodynamics for a model of a confined quasi-two-dimensional granular gas

Abstract

The hydrodynamic equations for a model of a confined quasi-two-dimensional gas of smooth inelastic hard spheres are derived from the Boltzmann equation for the model, using a generalization of the Chapman-Enskog method. The heat and momentum fluxes are calculated to Navier-Stokes order, and the associated transport coefficients are explicitly determined as functions of the coefficient of normal restitution and the velocity parameter involved in the definition of the model. Also an Euler transport term contributing to the energy transport equation is considered. This term arises from the gradient expansion of the rate of change of the temperature due to the inelasticity of collisions, and vanishes for elastic systems. The hydrodynamic equations are particularized for the relevant case of a system in the homogeneous steady state. The relationship with previous works is analyzed.

References in corpus (4)

• Modified Sonine approximation for the Navier-Stokes transport coefficients of a granular gas
• Universal reference state in a driven homogeneous granular gas
• Shear viscosity of a model for confined granular media
• Memory effects in the relaxation of a confined granular gas

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