Group convection_boxStRfCs

Overview

The group is configured with:

refinement_fraction: [0.4, 0.6, 0.8]

The group is tested with:

complement_refine_coarse: [1]

The group is genearated with extra settings:

test adaptive refinement and 'refraction' and 'coarsening' factor

For this group, I choose different refraction factor and assign a complement coarsening factor to the refraction factor.

Develop of mesh at the start of convection

The case with the highest refraction factor develops a refined region roughly matches the boundary region. While the other two doesn't really capture the boundary region.

Issue: Unstable meshes

For all three cases, the meshes doesn't become stable when the temperature is stable.

Issue: misterious coasrsening

At around 230 step, the mesh for the case convection_boxRF4.000e-01testCRC1 is all coarsened.