Evaluating the Impact of Road Layout Patterns on Pedestrian-Level Ventilation Using Computational Fluid Dynamics (CFD) DOI Creative Commons
Zhenxing Li, Han Bao-qiang,

Yaqi Chu

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(2), P. 123 - 123

Published: Jan. 23, 2025

The development of new energy vehicles and road dust removal technologies presents opportunities for constructing urban ventilation systems based on patterns. However, the impact system layouts pedestrian-level wind environments remains insufficiently understood. This study utilizes general-purpose CFD software Phoenics to analyze effects orientation, width, density, intersection configurations block ventilation. standard k-ε model three-dimensional steady-state RANS equations are employed calculate mean air age as an indicator efficiency. Grid convergence analysis validation against previous tunnel measurements were conducted. Results show that influence overall efficiency by affecting airflow volume, direction, velocity. Optimal occurs when orientation aligns with prevailing at 0° or exceeds 70°. Recommended widths trunk, secondary, local roads 46 m, 30 18 respectively. Lower densities enhance ventilation, while higher trunk secondary beneficial. Intersection distribution, windward segments aiding lateral side roads. Finally, design strategies proposed, offering potential leveraging networks construct efficient systems.

Language: Английский

Designing breezeways to enhance wind environments in high-density cities: A comprehensive analysis of ten morphological parameters DOI
Yueyang He, Carmen Hau Man Wong, Ji-Yu Deng

et al.

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 116, P. 105898 - 105898

Published: Oct. 11, 2024

Language: Английский

Citations

5
Exploring the heat balance characteristics in Shanghai by using the WRF model coupled with LCZ scheme DOI
Zheng Wang, Yasuyuki Ishida, Yifei Peng

et al.

Sustainable Cities and Society, Journal Year: 2025, Volume and Issue: unknown, P. 106295 - 106295

Published: March 1, 2025

Language: Английский

Citations

0
Spatial-Temporal Variation of Surface Temperature and Cold Island Network Construction in the Yangtze River Delta Urban Agglomeration: Perspectives from Current and Future Scenarios DOI
Jiayang Gao,

QU Li-ping,

Wei Wu

et al.

Sustainable Cities and Society, Journal Year: 2025, Volume and Issue: unknown, P. 106396 - 106396

Published: April 1, 2025

Language: Английский

Citations

0
Evaluating the Impact of Road Layout Patterns on Pedestrian-Level Ventilation Using Computational Fluid Dynamics (CFD) DOI Creative Commons
Zhenxing Li, Han Bao-qiang,

Yaqi Chu

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(2), P. 123 - 123

Published: Jan. 23, 2025

The development of new energy vehicles and road dust removal technologies presents opportunities for constructing urban ventilation systems based on patterns. However, the impact system layouts pedestrian-level wind environments remains insufficiently understood. This study utilizes general-purpose CFD software Phoenics to analyze effects orientation, width, density, intersection configurations block ventilation. standard k-ε model three-dimensional steady-state RANS equations are employed calculate mean air age as an indicator efficiency. Grid convergence analysis validation against previous tunnel measurements were conducted. Results show that influence overall efficiency by affecting airflow volume, direction, velocity. Optimal occurs when orientation aligns with prevailing at 0° or exceeds 70°. Recommended widths trunk, secondary, local roads 46 m, 30 18 respectively. Lower densities enhance ventilation, while higher trunk secondary beneficial. Intersection distribution, windward segments aiding lateral side roads. Finally, design strategies proposed, offering potential leveraging networks construct efficient systems.

Language: Английский

Citations

0