Data from wall-modelled LES of channel flow and flow over a backward-facing step

This dataset accompanies the following article

T. Mukha, S. Rezaeiravesh, M. Liefvendahl, A library for wall-modelled large-eddy simulation based on OpenFOAM technology, Computer Physics Communications, 2019,

DOI: 10.1016/j.cpc.2019.01.016

The contents of the archive are simulation cases the results from which are presented in the paper. This includes WMLES of turbulent channel flow and the flow over a backward-facing step (BFS). For all the simulations, a full OpenFOAM case, including initial condition fields, is provided.

The following conventions apply

- The number at the beginning of the case's name refers to the density of the gird n/delta.

- h1 and h2 refer to sampling from the wall-adjacent and second off-wall cell.

- linear and lust correspond to using the respective schemes for discretising the convective term.

- For all cases, the grid can be constructed using blockMesh

- For channel flow cases, the profiles directory holds averaged data. For completeness even moments that should be zero are included.

- For the BFS, the fields averaged in time and the spanwise direction are held in the average.vtm file. This can be opened with Paraview, turbulucid or other VTK-based software.

Note: the backflow field in the BFS cases actually holds the probability of forward-flow.

The correspondence between the directory structure of the archive and the sections of the article should be straight-forward to understand.

Note, the BFS cases require generating inflow fields. The precursor simulations that can be used for this purpose are included in the archive. To convert the generated surface-samples into a single hdf5 file we recommend using the Python package eddylicious, see

http://eddylicious.readthedocs.io

for documentation and guidelines for using with OpenFOAM.