Visualization of natural ventilation in water table test compared to computational simulations
During the design process, there is a gap between theory and practice, especially concerning natural ventilation. This gap requires simplified methods to aid the airflow visualization in buildings and its implementation over the design process. Many of the reliable natural ventilation tools, such as...
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| Główni autorzy: | , , , |
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| Format: | Online |
| Język: | por |
| Wydane: |
Universidade Estadual de Campinas
2020
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| Dostęp online: | https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8656954 |
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| Streszczenie: | During the design process, there is a gap between theory and practice, especially concerning natural ventilation. This gap requires simplified methods to aid the airflow visualization in buildings and its implementation over the design process. Many of the reliable natural ventilation tools, such as wind tunnel and CFD software, are complex and expensive, making it difficult to use for the designers. This research aims to verify if simplified and easily accessible tools represent in a trustworthy way the airflow in the architectural project. For this, the visualization of natural ventilation concepts through simplified experimentation is compared with complex and highly reliable tools such as CFD simulations. The methodology of this research was established in 3 stages. First, a modular physical model was built based on the specialized literature. Experimental tests on an intuitive and qualitative tool, such as the water table, were performed. Finally, computational simulations were performed in a simplified tool (Fluxovento) and Computational Fluid Dynamics (CFD) software. The results show compatibility between CFD simulations and water table tests, showing that using this tool for teaching basic concepts of natural ventilation is adequate In Fluxovento software. Significant differences were registered in the qualitative analysis of airflow. We highlight the possibility of taking advantage of the model's modular characteristic to elaborate on new cases in natural ventilation study. |
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