7.17 Package FL.NAVIER-STOKES

Defines incompressible Navier-Stokes problems as a special case of general elliptic systems.

Class: <NAVIER-STOKES-PROBLEM>

Navier-Stokes problem.

Superclasses: <ELLSYS-PROBLEM>

Function: NAVIER-STOKES-INERTIA-COEFFICIENTS DIM REYNOLDS

Yields a quasi-Newton linearization of the term u . grad u which has the form a Re u0 . grad u + b Re u . grad u0 = (a + b - 1) Re u0 . grad u0 a and b are given by the values of the special variables *alpha* and *beta*.

Function: NAVIER-STOKES-PRESSURE-AND-CONTINUITY-COEFFICIENT DIM &KEY (ETA 1.0) (XI 1.0)

The pressure and continuity part of the Navier-Stokes equation. These parts can be multiplied by factors eta and xi which can be useful for debugging, for example.