Cubit performs experimental and numerical fluid dynamics assessments.
Fluid Dynamics Competence Center of CUBIT has specific skills for assessments of experimental and numerical fluid dynamics, which it develops in collaboration with the group of Aerodynamics of the Department of Civil and Industrial Engineering of the University of Pisa. In particular, the competences in the experimental and numerical field allow:
- the experimental assessment of the whole procedure: selection of tunnel, model design, definition of test procedures and analysis of results;
- the numerical aerodynamics assessment, both for external and internal flows (e.g. air conditioning), in several sectors: aeronautics, marine, automotive and civil construction.
From the experimental point of view, several test campaigns have been organized in several tunnels, in Italy and abroad. These activities have included the complete cycle, from the identification of tunnels suitable to the tests, the design of the models up to the definition of test procedures and analysis of results. From the numerical point of view, CUBIT has twenty years’ experience in the use of CFD codes (Computational Fluid Dynamics). In the automotive industry, in particular, the Fluid Dynamics Center has collaborated in the development of several high-performance cars of Italian production. Thermo-fluid dynamic calculation methods were also developed for the assessment of air conditioning systems, both for car compartments and for civil buildings (especially data centers for super computers) and to get directions on measures to improve efficiency. The group has gained a lot of experience in the process of CFD assessment, often used in combination with numerical optimisation techniques.
- Specific experience on the prediction and control of average and fluctuating forces
- Use of commercial CFD codes, even for the study of fluid-structure interaction
- Strategies for the reduction of the base resistance of automotive and bluff bodies (experimental analysis and CFD)
- Aerodynamic optimisation
- Wind tunnel tests on different types of body, through measurements of forces and pressures, velocity measurements in the field, and surface and field views
- Organisation, control and data analysis of experimental campaigns
- Analysis of signals from experimentation and by numerical simulations using techniques based on the time-frequency on Hilbert and wavelet transforms.
- Development of numerical methods and calculation codes for large computational problems, mainly for simulation of complex flows
- Using open source CFD codes (e.g., openfoam, nek5000, freefem++) and their integration for specific problems through implementation of numerical methods and physical models ad-hoc
- Methodologies for integration of experimental data using numerical models