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Flow lines for visualizing wind fields
Flow lines help visualize a three-dimensional wind field: air that flows along the facades of a high-rise building swirls at the downwind/leeward side.
Wind fields around a building
Three-dimensional, invisible air flows are calculated and visualized in the computer model.
Air flows near the ground
In densely built-up cities, the wind field – and therefore the wind comfort situation – changes from one street to the next. An areal display of the comfort situation answers city planners’ questions.
Display of comfort conditions
The spatial distribution of wind comfort is visualized by colour fields at ground level. Especially in streets and alleys, wind comfort changes at every house corner.
Visualisation of three-dimensional wind fields
Critical areas with an increase of wind speed are visualized (in red).
Flow lines help to make a three dimensional wind field visible. Air that flows along the facades of a high-rise-building swirls on the leeward side.
Visualisation of turbulances
When air encounters resistance on a massive obstacle, it is diverted. In this case the air flows mainly downwards. Numerous turbulences develop behind the building.
Display of wind comfort near the ground
Few hours with high wind speeds are shown in green, a medium number of hours in yellow and a high – and therefore unpleasant – number of hours in red.
Wind rose Downtown Vienna
Segment length provides information about the frequency of the respective wind direction. As can be seen, downtown Vienna is dominated by wind from west to northwest. The colours show, which mean wind velocity can be expected.
Wind rose Cologne Bonn Airport (Germany)
The most frequent wind direction at the Cologne Bonn Airport by far is east southeast.
Windscreen Friedensbrücke (Vienna)
Wind comfort for waiting passengers of the then existing station and the planned station was determined. The glass windscreen was optimized so that its effect ranges from the pavement on the bridge to the tram stops.
Protective windbreak measures at the Donaucity (Vienna)
At the Donaucity – on the northern bank of the Danube River – wind blows often and strongly. Following advice from Weatherpark, protective windbreak measures in the form of plants were therefore established.
Trees as protective windbreak measure
Trees are highly suitable for reaching high wind comfort and human comfort. They reduce wind and provide shade, which can decrease overheating in built-up areas.
The managing directors of Weatherpark
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