ENH: new RANS model for geophysical applications

Summary

• ENH: kL: new RANS model for geophysical applications
  • STYLE: atmosphericModels: regroup atmospheric turbulence models
  • ENH: kEpsilonLopesdaCosta: enable this RANS model for compressible applications
• TUT: atmFlatTerrain: add an example for kL RANS model
  • BUG: atmFlatTerrain: fix input settings in the plot script

Resolved bugs (If applicable)

• A small issue in atmFlatTerrain/precursor/plot has been corrected.

Details of new models (If applicable)

• For a given case, the kL model reduces numerical costs approximately by one-third in comparison to the kEpsilon model for geophysical applications.
• A set of results obtained from the atmFlatTerrain and atmForestStability tutorials (left: kEpsilon, right: kL):

Risks

• No changes in user input.
• No changes are expected in output.
  • The directory structure of src/atmosphericModels has been changed. Therefore, the location of the directory kEpsilonLopesdaCosta has also been changed. Might affect few minor things for a few developers. Not crucial, IMHO.

Tests

• Compilation (incl. submodules):
  • linux64ClangDPInt32Opt (clang11)
  • linux64GccDPInt32Opt
  • linux64GccSPDPInt64Debug
• Alltest: No change in output with respect to the develop HEAD + no error