PISM, A Parallel Ice Sheet Model
stable v2.1-1-g6902d5502 committed by Ed Bueler on 2023-12-20 08:38:27 -0800
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◆ make_nonnegative_preserving()
Limit fluxes to preserve non-negativity of a transported quantity. This method is described in [Smolarkiewicz1989]. It is based on the [Zalesak1979] flux corrected transport limiter, but for the "regular" flux instead of the "anti-diffusive" flux and with a different limiting criterion (non-negativity instead of monotonicity). Limit fluxes to preserve non-negativity of a transported quantity. Definition at line 75 of file flux_limiter.cc. References pism::details::flux_out(), GlobalSum(), pism::array::Array::grid(), pism::array::max(), pism::array::min(), pism::details::np(), pism::details::pp(), and pism::array::Staggered1::star(). Referenced by pism::GeometryEvolution::flow_step(), and pism::UNO::update(). |