Uso da fluidodinâmica computacional para estimativa de esforços em estufa agrícola

Abstract

Agricultural greenhouses are structures that allow crops in ideal conditions, however, suffer from the effects of climatic conditions, which affect their structures, especially in tropical areas by wind actions. This objective work constitutes the study of loads in agricultural greenhouses by the action of wind in an arched agricultural greenhouse structure installed at the Federal University of Pampa campus Alegrete/RS. The Wind project data to study region were used, conferring with specifications of the structure in according to Brazilian regulations of wind actions in the structures - ABNT NBR 6123(1988), Greenhouse structure and agricultural nursery ABNT NBR 16032(2012) and by computational fluid dynamics analysis, through the software Autodesk CFD. The construction characteristics of the structure already built, climate aspects, relief, and implementation situation at the site were evaluated, as well as the obstruction pressure, from the characteristic speed, total pressure coefficients, internal pressure coefficient, and external pressure coefficients, by the existing standards, to perform the comparison of results found by the standard with the data generated in the Software. The ethodologies were favorable to obtaining the coefficients and efforts in the structure of the greenhouse and its practical results.