It was developed as a turbulence-resolving large-eddy simulation (LES) model specifically designed to run on massively parallel computer architectures. Meanwhile, turbulence closure based on the Reynolds-averaged Navier-Stokes (RANS) equations has been added so that PALM can run not only in turbulence-resolving mode (i.e., LES) but also in RANS mode, in which the entire turbulence spectrum is parameterized.
The PALM model system is free software. It can be redistributed and/or modified under the terms of the GNU General Public License (v3). We kindly request that you cite PALM in all your publications. For details, see citing PALM.
More information, publications and members of the team about PALM here and in the natESM system optional components.