Ricerc@Sapienza

The availability of three-core, XLPE-insulated AC HV and EHV cables is allowing the installation of very long AC cable systems. Accurate and reliable cable models are necessary in order to assess the behaviour of such cables, especially as regards temporary overvoltages and harmonic resonances. The three-core submarine cable models currently available in electromagnetic transient simulation software are based on linearized pipe-type cables and besides they do not account for conductor and armour stranding.

This paper presents a CFD analysis of the wind velocity simulated in a portion of the campus of the University of Rome “La Sapienza” (Italy). One of the final goals of this study is the evaluation of the pressure field on the surfaces of the buildings in order to quantify outdoor-indoor exchanges of air mass within a street canyon adjacent to the building of interest. Numerical results concerning the wind field have been compared with in situ data collected in the framework of the VIEPI (Integrated Evaluation of Indoor Particulate Exposure) project.

Coastal shallow basins are often heavily anthropized and greatly exposed to environmental risk areas, thus requiring strict monitoring action by local authorities and stakeholders. Preventive measures against environmental degradation and early warning to hazards have been proved to benefit from the combined use of numerical models and field measurements.