| Issue |
E3S Web Conf.
Volume 356, 2022
The 16th ROOMVENT Conference (ROOMVENT 2022)
|
|
|---|---|---|
| Article Number | 03060 | |
| Number of page(s) | 4 | |
| Section | Thermal Comfort and Natural Ventilation | |
| DOI | https://doi.org/10.1051/e3sconf/202235603060 | |
| Published online | 31 August 2022 | |
Numerical research on cross-ventilation flow of a generic building in unsheltered and sheltered conditions: impact of cross-section
1 Academy of Building Energy Efficiency of Guangzhou University, 510006 Guangzhou, China
2 Guangdong Provincial Key Laboratory of Building Energy Efficiency and Application Technologies, 510006 Guangzhou, China
3 School of Civil Engineering, Guangzhou University, 510006 Guangzhou, China
Corresponding author: tingalan@foxmail.com
The performances of ventilation in the buildings with quadrate and cylindrical cross-sections are compared numerically. The incoming jet in the cylindrical unsheltered-building is more horizontal in comparison to the quadrate unsheltered-building. The dimensionless volume flow rates in the quadrate and cylindrical unsheltered-buildings are respectively 0.503 and 0.553. The incoming jet in the sheltered-buildings flows to the floors immediately. The velocity near the floor in the cylindrical sheltered-building is greater than that in the quadrate sheltered-building. The dimensionless volume flow rates in the quadrate and cylindrical sheltered-buildings are respectively 0.130 and 0.210.Comparing with the quadrate buildings, the ventilation rates in the cylindrical unsheltered and sheltered buildings increased by 10% and 61%.
© The Authors, published by EDP Sciences, 2022
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