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9 Result(s)

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  1. No Access

    Article

    On the Derivation of a High-Velocity Tail from the Boltzmann–Fokker–Planck Equation for Shear Flow

    Uniform shear flow is a paradigmatic example of a nonequilibrium fluid state exhibiting non-Newtonian behavior. It is characterized by uniform density and temperature and a linear velocity profile U ...

    L. Acedo, A. Santos, A. V. Bobylev in Journal of Statistical Physics (2002)

  2. No Access

    Article

    Nonlinear Couette Flow in a Low Density Granular Gas

    A model kinetic equation is solved exactly for a special stationary state describing nonlinear Couette flow in a low density system of inelastic spheres. The hydrodynamic fields, heat and momentum fluxes, and ...

    M. Tij, E. E. Tahiri, J. M. Montanero, V. Garzó… in Journal of Statistical Physics (2001)

  3. No Access

    Article

    Distribution function for large velocities of a two-dimensional gas under shear flow

    The high-velocity distribution of a two-dimensional dilute gas of Maxwell molecules under uniform shear flow is studied. First we analyze the shear-rate dependence of the eigenvalues governing the time evoluti...

    J. M. Montanero, A. Santos, V. Garzó in Journal of Statistical Physics (1997)

  4. No Access

    Article

    Does the Gaussian thermostat maximize the phase-space compression factor?

    A recent hypothesis of D. J. Evans and A. Baranyai according to which the Gaussian thermostat maximizes the average phase-space compression factor λ in nonequilibrium steady states is analyzed for a dilute gas...

    J. M. Montanero, A. Santos, V. Garzó in Journal of Statistical Physics (1995)

  5. No Access

    Article

    Nonlinear transport in a dilute binary mixture of mechanically different particles

    The hierarchy of moments of the Boltzmann equation for a binary mixture of mechanically different Maxwell molecules is exactly solved. The solution corresponds to a nonequilibrium homogeneous steady state gene...

    C. Marín, V. Garzó, A. Santos in Journal of Statistical Physics (1994)

  6. No Access

    Article

    Radial distribution function for sticky hard-core fluids

    Following heuristic arguments, analytic expressions for the radial distribution functiong(r) of one- and three-dimensional sticky hard-core fluids (i.e., square-well fluids in a scaled limit of infinite depth and...

    S. Bravo Yuste, A. Santos in Journal of Statistical Physics (1993)

  7. No Access

    Article

    Lattice gases with static disorder: Renormalization of mean field theory

    Lattice gas automata are used to model transport phenomena in random media with static disorder. If the interactions are repulsive, there is a large probability of backscattering or retracing collision sequenc...

    A. J. H. Ossendrijver, A. Santos, M. H. Ernst in Journal of Statistical Physics (1993)

  8. No Access

    Article

    Exact solution of the Boltzmann equation in the homogeneous color conductivity problem

    An exact solution of the Boltzmann equation for a binary mixture of “colored” Maxwell molecules is found. The solution corresponds to a nonequilibrium homogeneous steady state created by a nonconservative exte...

    V. Garzó, A. Santos in Journal of Statistical Physics (1991)

  9. No Access

    Article

    Solution of the BGK model kinetic equation for very hard particle interaction

    We study the Bhatnagar-Gross-Krook model kinetic equation with a velocity-dependent collision frequency. We derive the conditions that must be verified in order to keep the main physical properties of the Bolt...

    J. J. Brey, A. Santos in Journal of Statistical Physics (1984)