Ricerc@Sapienza

The effect of humidity on the climatic conditions and the turbulence around an isolated building has not been yet investigated in literature. This paper analyses the simultaneous effect of architectural and environmental parameters on the vortex creation around a building, focusing on the impact of relative humidity. Sixty-four 3D computational fluid dynamics simulations have been performed, coupling 4 values of inlet velocity, air temperature, solar radiation and building height with 4 values of relative humidity.

The paper focuses on the problem of the "informal" city, consisting of large nuclei of houses built in peri-urban areas, for private initiative and without planning, in often fragile territories from the environmental and social point of view. The absence of a recognizable and identifiable form in contemporary urban development leads to theoretical reflections, highlighting the crisis of "architecture without architects" and the spontaneous growth of cities.