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Influence of the surroundings on a buildings natural ventilation performance: measurement of wind pressure coefficients through wind tunnel experiments

Grant number: 18/11137-0
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2018
Effective date (End): August 31, 2019
Field of knowledge:Applied Social Sciences - Architecture and Town Planning - Architecture and Urbanism Technology
Principal researcher:Leticia de Oliveira Neves
Grantee:Matheus Durante Marques
Home Institution: Faculdade de Engenharia Civil, Arquitetura e Urbanismo (FEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

In civil construction, using natural resources and climatic conditions adequately contribute to obtain better thermal comfort and air movement conditions in buildings. However, due to the constant process of urban verticalization, using techniques of natural ventilation in buildings situated in densely urbanized areas represents a huge challenge for the architectural design. Being so, the main objective of this research is to investigate the impact of the surroundings on the natural ventilation performance of a high-rise building, located in a high density urban centre, through the determination of wind pressure coefficients of the envelope of a reference case, considering the isolated building and with the surroundings. In this regard, a reference model will be built based on a database of office buildings located in the city of São Paulo, Brazil. The experiment will be undertaken on the atmospheric boundary layer wind tunnel of the Laboratory of Environmental Comfort and Applied Physics of the School of Civil Engineering, Architecture and Urban Design of the University of Campinas. After performing the wind tunnel experiments, contouring mappings from the collected wind pressure coefficients will be generated for each side of the model and for each tested scenario. The scenarios will then be compared, in order to map the influence of the built surroundings on the natural ventilation performance of the building.

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