Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical Investigation of Wind-Driven Cross-Ventilation on a Low-Rise Residential Building
Natural ventilation is an essential element of sustainable buildings as well as a promising solution for mitigating indoor air quality (IAQ) issues such as those related to the spread of COVID-19. The current study analyzes wind-driven cross-ventilation efficacy for a low-rise residential building with complex geometry and internal partitions consistent with typical units. A high-resolution computational fluid dynamics (CFD) simulation is carried out using a 3D steady Reynolds-Averaged Navier–Stokes (RANS) approach with a realizable k-ε turbulence closure. Microclimate parameters include different wind speeds and wind directions for a configuration with openings on all four sides of the building. The results indicate that air changes per hour (ACH) increase with windward opening area, and the number of ACH has a linear relationship with the wind velocity. Furthermore, adequate natural ventilation requires rooms to have a minimum of two openings to influence airflow and enhance IAQ.
Numerical Investigation of Wind-Driven Cross-Ventilation on a Low-Rise Residential Building
Natural ventilation is an essential element of sustainable buildings as well as a promising solution for mitigating indoor air quality (IAQ) issues such as those related to the spread of COVID-19. The current study analyzes wind-driven cross-ventilation efficacy for a low-rise residential building with complex geometry and internal partitions consistent with typical units. A high-resolution computational fluid dynamics (CFD) simulation is carried out using a 3D steady Reynolds-Averaged Navier–Stokes (RANS) approach with a realizable k-ε turbulence closure. Microclimate parameters include different wind speeds and wind directions for a configuration with openings on all four sides of the building. The results indicate that air changes per hour (ACH) increase with windward opening area, and the number of ACH has a linear relationship with the wind velocity. Furthermore, adequate natural ventilation requires rooms to have a minimum of two openings to influence airflow and enhance IAQ.
Numerical Investigation of Wind-Driven Cross-Ventilation on a Low-Rise Residential Building
Environ Sci Eng
Wang, Liangzhu Leon (Herausgeber:in) / Ge, Hua (Herausgeber:in) / Zhai, Zhiqiang John (Herausgeber:in) / Qi, Dahai (Herausgeber:in) / Ouf, Mohamed (Herausgeber:in) / Sun, Chanjuan (Herausgeber:in) / Wang, Dengjia (Herausgeber:in) / Vandewiel, Matthew R. (Autor:in) / Younis, Muna (Autor:in) / Kahsay, Meseret T. (Autor:in)
International Conference on Building Energy and Environment ; 2022
Proceedings of the 5th International Conference on Building Energy and Environment ; Kapitel: 226 ; 2117-2125
05.09.2023
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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