Post-Processing and Visualisation

The Nektar++ FieldConvert module is used to convert the .chk files produced by the run into .vtu files that can be viewed in Paraview.

# Convert to vtu using FieldConvert (requires xml files as args)
cd runs/[EquationSystem]/[Mesh]/[Dimension]/[Example]

FieldConvert [config_xml] [mesh_xml] [chk_name] [vtu_name]
# e.g. FieldConvert single_field.xml mastu.xml single_field_100.chk single_field.vtu
paraview [vtu_name]

To convert multiple .chk files at once:

for i in {0..1000}; do FieldConvert -f s[config_xml] [mesh_xml] [chk_name]_$i [vtu_name]_$i.vtu; done;
# e.g. for i in {0..1000}; do FieldConvert -f single_field.xml mastu.xml single_field_$i.chk single_field_$i.vtu; done;

Particles can also be viewed in Paraview by opening “particle_trajectopry.h5part”