RIBEIRO, N. N. E.; http://lattes.cnpq.br/2429570736611573; RIBEIRO, Nair Nayara Enéas.
Abstract:
undergoing a process of urban expansion and, therefore, changes in the configuration of its
landscapes, characterizing and degrading its natural components. Reflecting the intense urban
expansion, especially when it comes to buildings of social interest, what is seen is the
emergence of large housing estates that, for the most part, disregard important requirements
such as ventilation and insolation in the implantation of their blocks. And what happens in the
PMCMV fact that associated with the replication of projects without taking into account the
local climate raises the question of the quality of these dwellings to the detriment of quantity.
One typology that has been gaining strength in this housing program is the monolithic
building that, as seen in previous research (MORAIS, 2013), is very unfavorable to the
internal natural ventilation of its housing units. For this reason we look at this work for this
typology, however, for a study in an urban setting. The wind is considered the climatic
element that changes more than the morphological conditions of the urban fabric. In this, the
advantages of ventilation between buildings are related to the direct transfer of air circulation
inside the buildings, as well as contributing to the mitigation of heat islands. What is observed
is that the use of wind potential is not yet an exercise applied to the urban project. The
research seeks to encourage urban planning considering the climatic issues, especially the use
of natural ventilation, to search for a city with better environmental quality and more
sustainable. In the present research, natural ventilation in urban areas was investigated
through computational simulations with the aid of the CFD tool, in a vertical set of the
PMCMV, since these were housing for the low-income population and also for the
characteristic of the program itself. Insists on replicating projects in any localities although
there are different climes. The objective is to diagnose conditions of natural ventilation in the
set and propose a scenario of change for the same, aiming at improvements in ventilation of
the same and less impact on their surroundings. Analyzing the results of the computational
simulations of the natural ventilation in the current and proposed implantation, for incidences
east (90º) and southeast (130º), it was verified that the minimum retreats, the same jig
between the blocks and the implantation angle, factors that Are predicted to have a direct
impact on the natural ventilation of the pool as well as its immediate surroundings. Therefore
the importance of the project / planning that considers these variables and that can contribute
to a better city stands out.