Our phd student Giovanna Gargiulo explains in detail the objectives of EXCELLERAT project. The goal of my research is the DT(Digital Twin) of an OT (Operating Theater): from CFD(Computer Fluid Dynamics)to DT. The design of an OT is a complex task and requires a multidisciplinary approach, that includes techniques from engineering and medical sciences. In this scenario the Digital Twin could be a helpful in design, in control and manutention operations. OT problems are related with environmental control and with the design of an appropriate HVAC(Heating ventilating Air Conditional) system to prevent the riskof infections during surgical operations maintain ing a comfort condition for the patient and the surgical staffinthe same time.

To understand the importance of air injection, different CFD studies were done. The idea expects that a ROM(Reduced Order Model) is realized to obtain in quick time and using little computational resource the physical fields of interest: in few seconds it will be possible to obtain the field values modifying the input values. The building process of ROM is made by a learning part and by a validation part(fig. 2)and the learning is realized by a SVD (Singular Value Decomposition) in Ansys Twin Builder software. After this, it will be possible build a control system of the HVAC with advantages of ROM(fihing with RBF, an example is shown in figure (fig.4). In addition it will be possible to integrate the geometric variations in addition to the physical field variations in ROM.