Windflow impact is especially significant in areas with high-rise buildings.
Proper urban planning requires flow simulations. The wind has a strong influence on the safety, functionality, aesthetics and personal comfort of residents. Windflow impact is especially significant in areas with high-rise buildings. Wind flow is a crucial element determining the personal comfort of residents, and in many cases the success of local businesses.
Outdoor flows simulations can be very useful when designing the structure of a building. Understanding how the building will interact with the environment, and in particular how it will react to internal and external air flow is getting critical in contemporary architectural design. Scientists predict a dynamic growth of CFD simulations popularity among architects.
In urban environments wind strongly influences the microclimate and personal comfort. High-rise buildings can provoke wind effects such as downwards-deflection, upwards-deflection, “venturi effect” with high wind speed between the narrow spaces, eddies, and counter-current effects. These patterns are practically impossible to predict and include in urban planning without the use of accurate CFD simulations.
As a result, a slight breeze can turn into a strong wind with the speed of above 60km/h. Such gasps can be dangerous for pedestrians, and can negatively affect the business in the area. Strong winds increase the maintenance cost for buildings and other urban infrastructure.
However, wind can be turned into an asset if urban planners, architects, construction engineers cooperate at the earliest stages of the planning process. Turbines can power the buildings, and awnings, trees, and bushes can be placed to slow down the wind.