Example of Pedestrian Comfort & Safety study using CFD modelling software Urbawind
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The document discusses green building and urban planning, highlighting solutions for reducing energy costs and enhancing outdoor living spaces through climate comfort studies. It presents examples of urban climate modeling for improving pedestrian comfort, focusing on discomfort frequencies and wind protections in different rehabilitation and new building projects. Specific case studies include the rehabilitation of districts and schools, along with the design of new buildings using advanced simulations.
Example of Pedestrian Comfort & Safety study using CFD modelling software Urbawind
- 1. Green building and urban planning
- 2. NEW SOLUTIONS TO : – Reduce energy costs thanks to natural ventilation. – Respect environment thanks to wind and solar resource. – Bring more quality to outdoor living spaces through studies of climate comfort. For example, for a site study of DISCOMFORT FRECUENCIES – Mappings of wind speed-up for prevailing wind directions at the pedestrian height (1.5 m above the ground). – Mappings of frequencies of the gust speeds exceeding the speed of 3,6m/s at the pedestrian height (1.5 m above the ground). To improve the projects according to the outdoor pedestrian comfort NUMERICAL MODELLING OF THE URBAN CLIMATE
- 3. Example 1 :REHABILITATION OF DISTRICTS Initial state Project
- 4. AERIAL VIEW OF THE SITE
- 7. FREQUENCIES OF PEDESTRIAN DISCOMFORT Initial state Project
- 8. WIND PROTECTIONS Before protection After protection
- 9. WIND PROTECTIONS Before protection After protection Marche rapide Marche normale Debout Assis France (CSTB) F(V>3.6) < 20 % F(V>3.6) < 10 % F(V>3.6) < 5 % F(V>3.6) < 5 % Brisk walking Normal walking Standing Seated
- 10. SYNTHESIS Marche rapide Marche normale Debout Assis France (CSTB) F(V>3.6) < 20 % F(V>3.6) < 10 % F(V>3.6) < 5 % F(V>3.6) < 5 % Rehabilitation of a former elementary school Rehabilitation of exteriors spaces Demolition of the towers and construction of small height building. Creation of an esplanade in the heart of the district Creation of a playground Brisk walking Normal walking Standing Seated
- 11. EXAMPLE 2 :NEW BUILDING UrbaWind CFD simulations © Block B3A of ZAC Paris Rive gauche Owner: IVANHOE CAMBRIDGE - HINES France Architect: Atelier Jean NOUVEL
- 12. EXAMPLE 2 :NEW BUILDING Winter Summer FREQUENCIES OF PEDESTRIAN DISCOMFORT