NAME

       limiter - discontinuous Galerkin slope limiter (rheolef-7.1)

SYNOPSIS

       template <class T, class M>
       field_basic<T,M>
       limiter (
          const field_basic<T,M>& uh,
          const T&                bar_g_S = 1.0,
          const limiter_option&   opt = limiter_option());

DESCRIPTION

       This function returns a slope limited field for any supplied discontinuous approximation.

           geo omega ("square");
           space Xh (omega, "P1d");
           field uh (Xh);
           ...
           field vh = limiter(uh);

        It implements the minmod_TVB limiter for hyperbolic nonlinear problems approximated by discontinuous
       Galerkin methods. See the usersguide for details and examples.

OPTIONS

       struct limiter_option {
         bool active;
         Float theta; // > 1, see Coc-1998, P. 209
         Float M;     // M=max|u''(t=0)(x)| at x where u'(t)(x)=0 :extremas
         limiter_option() : active(true), theta(1.5), M(1) {}
       };

IMPLEMENTATION

       This documentation has been generated from file main/lib/limiter.h

AUTHOR

       Pierre  Saramito  <Pierre.Saramito@imag.fr>

COPYRIGHT

       Copyright   (C)  2000-2018  Pierre  Saramito  <Pierre.Saramito@imag.fr> GPLv3+: GNU GPL version 3 or
       later  <http://gnu.org/licenses/gpl.html>.  This  is  free  software:  you  are free to change and
       redistribute it.  There is NO WARRANTY, to the extent permitted by law.

Version 7.1                                      Sun Oct 31 2021                               limiter(3rheolef)