Natural ventilation: CFD aerodynamic study about passive extractor and windcatcher

Jose Sanchez Ramos, JM Salmerón, FJ Sanchez, S Alvarez


Natural ventilation has won popularity in recent times like an energy saving way for buildings. There are two fundamental principles of natural ventilation: natural draft by difference in temperature and wind strength. The article aims to analyze the aerodynamics of windcatcher and wind-extractor by computational fluid-mechanics, optimizing the geometry of these elements, and giving as a result of the work a simplified model to take account aeraulic calculation of air conditioning system. So, It has characterized a collection of wind-catchers; and have developed a guide for geometric design of wind-extractor, also several of them like a result of the work.

Rev. ing. constr. [online]. 2012, vol.27, n.1, pp. 40-56. ISSN 0718-5073.


windcatcher; natural ventilation; passive; pressure coefficient; CFD



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