The current dataset contains numerical results from openfoam simulation of a cylinder wake at reynolds number Re=3900.

The geometry has been constructed using blockMesh followed by snappyHexMesh tools : the 3D domain is a [0:20]x[-10:10]x[0:3.14] box crossed by a Z axis cylinder centered at Ccyl=(5,0) with a radius Rcyl=0.5.

As for the simulation, the pimpleFoam solver of openfoam 21.12 has been used, followed with parafoam for post treatment visualization, and ITHACA-FV for POD

The code has been run on a cluster with almost 28 CPUs with commands like :

RUNNING (LES)

decomposePar -decomposeParDict system/decomposeParDict -force
mpirun -n 28 pimpleFoam -parallel
mpirun -n 28 redistributePar -parallel -reconstruct -overwrite

POST treatment

   In current directory, Iso Q generation for visualization : postProcess -func Q -time "500:600"
   In POD-* directory, POD using ITHACA-FV library and ANR code  RedLUM. POD is performed on 500:1000 (train set) using the snapshot method. Temporal modes are also evaluated on 1000:1100 (test set) by snapshot projection.

Openfoam, 21.12

paraview, >=5.10