Turbase DNS a database of direct numerical simulations

Turbase. DNS: a database of direct numerical simulations of complex flows F. Bonaccorso 1, L. Biferale 1, A. Lanotte 2 and M. Sbragaglia 1 1 University of Rome Tor Vergata & INFN, Rome, Italy 2 CNR ISAC & INFN, Lecce Italy fabio. bonaccorso@roma 2. infn. it

Our Current Challenges Computational Fluid Dynamics (CFD) community is facing the problem of preservation, standardization and analysis of big data, e. g: Several numerical experiments from PRACE projects 4 th call, PI A. Lanotte, “Eulerian and Lagrangian Turbulence over a reduced fractal skeleton”, 22 M core-hours on FERMI@CINECA 40 TB data storage. 7 th call, PI M. Sbragaglia, “Dynamics of multi-component Fluid dynamics in porous structures” 9. 1 M core-hours on HERMIT@JULICH 40 TB data storage. 9 th call, PI L. Biferale, “Effect of Helicity and Rotation in Turbulent flows: Eulerian and Lagrangian statistics”, 55 M core-hours on FERMI@CINECA, 100 TB data storage 11 th call, PI L. Biferale, “HAT - Homogeneous and Anisotropic Turbulence: Eulerian and Lagrangian statistics”, 27 M core-hours on FERMI@CINECA, 100 TB data storage. Without systematic analysis and classification of huge datasets: pletora of in-house ad-hoc solutions vs standards

Why EUDAT? 1. Preserve: Guarantees long-term persistence of data (B 2 SHARE) 2. Standard solution for researchers to share common datasets, retaining full access speed from HPC systems (B 2 SHARE) 3. Reaching a wider audience than CFD specialists (B 2 SHARE) 4. Building from experience in metadata from different science fields 5. Permanent identification of data: data owner tracing (B 2 SHARE) 6. Professionally managed storage service (B 2 SHARE) 7. Transfer large data collection from EUDAT storage to HPC facilities (B 2 STAGE)

The expected future impact - Benchmark for next generation codes - Validation of measurements from experimental and field data - Aposteriori exploitation without the need of HPC facilities Cross-field applications: Bio-fluids, Environmental physics, Meteorology, Astrophysics, Mechanical Engineering, etc. .