The importance of cryogenic He flows for the study of turbulence in high Reynolds regimes, as an invaluable complement to the experimental studies conducted on “conventional” fluids, was strongly reaffirmed – if need there was - during the 3-days EuTuCHe international workshop held at CERN in April 2007 (http://indico.cern.ch/internalPage.py?pageId=3&confId=11920). More than 60 researchers from 10 countries gathered to discuss the achieved and potential results deriving from the use of helium at cryogenic temperatures for turbulence analysis, and their connections and synergies with the studies conducted in room temperature fluids. It was clear that the whole turbulence research community would largely benefit from widened access to state-of-the-art large-scale cryogenics installations.
Notwithstanding the workload already charged on CERN cryogenics park, CERN is offering a unique opportunity to direct and indirect access to the GReC installation to a number of European researchers, up to now prevented from benefiting from the advantages of cryogenics flows due to the high costs and complex technologies involved. Fully conscious of the role that it can play in this direction, CERN has accepted to reserve a non negligible fraction of the yearly access to this installation to groups of turbulence researchers in the context of a TNA programme
Beside the direct scientific advances that will be brought by this new programme, it is also expected an important cultural impact on the participants. Not only through the dissemination of technical knowledge relevant to cryogenics and its use for science, but also, in a more general sense, through the direct contact with the scientific environment of HEP at CERN, a real melting pot of scientific, technical and cultural skills. The “hands-on” contact with the world’s largest international research centre, where scientists from different institutes and countries cooperate in a structured and integrated way to reach the required critical mass for fundamental science advances, each one still preserving his own autonomy and visibility, will certainly produce positive effects in terms of culture of structured scientific cooperation.