To convert the Nektar++ output binary files (.chk and .fld) into a format which can be read by two common visualisation softwares: Paraview (.vtu format), VisIt (.vtu format) or Tecplot (.dat format) the user can run the following commands:
FieldConvert is the executable associated to the utility FieldConvert,
test.xml is the
session file and
test.vtu are the desired format outputs, either Tecplot or
Paraview format respectively.