  The construction of a generalized (higher-order) nonlinear
thermo-hydrodynamics, based on a nonequilibrium ensemble formalism has been
presented in the preceding article. The working of such theory is illustrated
in the present one. We consider here the case of two ideal classical fluids in
interaction between them, and the nonlinear equations of evolution for the
density (a hyperbolic one) and for the velocity field describing motion under
flow are derived. Also, now at the quantum level, it is described the nonlinear
transport in the fluid of electrons in doped polar semiconductors, and
comparison with Monte Carlo calculations and with experimental data is done,
obtaining very good agreement.
