/usr/include/freefoam/compressibleLESModels/ is in libfreefoam-dev 0.1.0+dfsg+1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/freefoam/compressibleLESModels/DeardorffDiffStress.H
/usr/include/freefoam/compressibleLESModels/GenEddyVisc.H
/usr/include/freefoam/compressibleLESModels/GenSGSStress.H
/usr/include/freefoam/compressibleLESModels/LESModel.H
/usr/include/freefoam/compressibleLESModels/Smagorinsky.H
/usr/include/freefoam/compressibleLESModels/SpalartAllmaras.H
/usr/include/freefoam/compressibleLESModels/alphaSgsJayatillekeWallFunctionFvPatchScalarField.H
/usr/include/freefoam/compressibleLESModels/alphaSgsWallFunctionFvPatchScalarField.H
/usr/include/freefoam/compressibleLESModels/dynOneEqEddy.H
/usr/include/freefoam/compressibleLESModels/forceLink.C
/usr/include/freefoam/compressibleLESModels/lowReOneEqEddy.H
/usr/include/freefoam/compressibleLESModels/muSgsWallFunctionFvPatchScalarField.H
/usr/include/freefoam/compressibleLESModels/oneEqEddy.H
/usr/include/freefoam/compressibleLESModels/vanDriestDelta.H