A demand for renewable alternatives that would be able to deal with the
problems related to well-being is directly linked to the world’s growing needs to
save energy and reduce environmental costs. For a project implementation addressing
these issues, it is essential to know the climatic conditions of the target
area. Taking natural ventilation, climatic factors, and renewable alternatives as important
sources of comfort, in this work, passive strategies, through the utilization
of microclimate elements as well as the location of outside obstacles, were imposed on an initial
and specific project. The objective was to introduce obstacles which could
interfere in the field of external wind and evaluate whether this outside
intervention is able to make changes in indoor air circulation. The wind fields
for the studied cases were obtained by computational simulations, and their
consequences were analyzed to attain thermal comfort. The method adopted to
obtain the wind fields was a Petrov-Galerkin type method, which is a stabilized
mixed finite element method of the Navier-Stokes equations considering the incompressibility and
formulated in primitive variables, velocity and pressure. The obtained results
point to the solutions that promote the increase or decrease of the wind-field
Cite this paper
P. Drach and J. Karam-Filho, "Increasing Ventilation by Passive Strategies: Analysis of Indoor Air Circulation Changes through the Utilization of Microclimate Elements," Applied Mathematics
, Vol. 5 No. 3, 2014, pp. 442-452. doi: 10.4236/am.2014.53044
 O. D. Corbella and S. Yannas, “Em Busca de Arquitetura Sustentável para os Trópicos,” Editora Revan, Rio de Janeiro, 2003.
 B. Givoni, “Man, Climate and Architecture,” Applied Science Publishers LTD, London, 1976.
 L. R. Mascaró, “Clima, Arquitetura e Energia,” Proceedings of the Seminário de Arquitetura Bioclimática, Rio de Janeiro, 1983, pp. 11-17.
 R. Lamberts, L. Dutra and F. O. R. Pereira, “Eficiência Energética na Arquitetura,” Editora PW, Sao Paulo, 1997.
 S. Szokolay, “Approaches to Tropical House Design,” Proceedings of the II Encontro Latino Americano de Conforto no Ambiente Construído, Fortaleza, 1999.
 P. R. C. Drach and J. Karam-Filho, “Análise de Circulacao de ar em Ambientes Interiores, via Elementos Finitos,” Proceedings of the I—Latin American Conference on Sustainable Building and X-Brazilian Conference on Technology for the Building Environment, Sao Paulo, 18-21 July 2004, pp. 1-14.
 P. R. C. Drach and J. Karam-Filho, “Effects of Wall Shape Changes in Indoor Air Circulation—Studies on Concave and Convex Walls,” International Journal of Ventilation, Vol. 9, 2010, pp. 149-161.
 A. N. Brooks and T. J. R. Hughes, “Streamline Upwind/Petrov-Galerkin Formulations for Convection Dominated Flows with Particular Enphasis on the Incompressible Navier-Stokes Equations,” Computer Methods in Applied Mechanics Engineering, Vol. 32, No. 1-3, 1982, pp. 199-259. http://dx.doi.org/10.1016/0045-7825(82)90071-8
 J. Karam-Filho and A. F. D. Loula, “On Stable Equal-Order Finite Element Formulations for Incompressible Flow Problems,” International Journal for Numerical Methods in Engineering, Vol. 2, No. 34, 1992, pp. 655-665. http://dx.doi.org/10.1002/nme.1620340216
 L. P. Franca and S. L. Frey, “Stabilized Finite Element Methods: II. The Incompressible Navier-Stokes Equations,” Computer Methods in Applied Mechanics Engineering, Vol. 99, No. 2-3, 1992, pp. 209-233. http://dx.doi.org/10.1016/0045-7825(92)90041-H
 T. J. R. Hughes, “The Finite Element Method: Linear Static and Dynamic Finite Element Analysis,” Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1987.
 J. M. Evans, “Housing, Climate and Comfort,” Architectural Press LTD, London, 1980.