The present wind tunnel particle image velocimetry (PIV) measurements document flows around flat and steep street canyons subject to thermal conditions at different levels, ranging from the Richardson number of 0.31 2.07. A steepness ratio, that is, ratio windward leeward building heights, is proposed characterise geometrical influence surrounded by buildings non-uniform height. To study effect...

The implementation of adaptation strategies has become an essential activity spatial planning departments. Passive technologies related to the introduction natural components in form vegetation are used, especially urban development plans, mitigate effects climate change and thus improve quality citizen life. Nature-Based Solutions particular importance areas strict city centers, where historic...

The influence of vegetation on the concentrations of traffic pollutants in urban street canyons is examined using numerical simulations with the CFD code OpenFOAM. This CFD approach is validated against literature wind tunnel data on traffic pollutant dispersion in street canyons. The impact of avenues of trees is simulated for a variety of vegetation types and the full range of approaching win...

Assessment Of Aesthetic Quality Of Urban Green Space From The User’s Perspective In Sustainable Urban Regeneration Approach Of Historic Core Of Tehran: (The Case Of Compare Between Bab Homayon Street And Imam Khomeini Street)

A field deterministic model of the vehicular dynamics in a generic urban street canyon with two neighboring canyons is considered. The assumed hydrodynamical model of vehicular movement is coupled to the gasdynamical model of the air and emitted pollutants. The vehicles are assumed to move on distinct left lanes and right ones. At the upstream and downstream ends there are coordinated traffic l...

The purpose of this paper is to investigate the contribution urban morphology formation microclimatic conditions prevailing within outdoor spaces. We studied compact form a city and examined, at detailed, street plan level, elements related air temperature, ventilation, individual’s thermal comfort. All examined are directly affected by both availability open green field study took place in typ...