  We present TURB-Hel, a database formed by two datasets of incompressible
homogeneous and isotropic turbulence, maintained in a statistically stationary
state by fully helical forcing. The aim is to provide a dataset that clearly
exhibits the phenomenon of the helicity cascade from the large to the small
scales generated by a large-scale forcing that breaks the mirror symmetry. This
database offers the possibility to realize a wide variety of analyses of fully
developed turbulence from the sub-grid scale filtering up to the validation of
an a posteriori LES. TURB-Hel is available for download using the SMART-Turb
portal http://smart-turb.roma2.infn.it.
