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The design of buildings and structures requires an accurate assessment of wind loads on the structural system and cladding elements to ensure efficient and reliable design. Loads obtained from building code provisions cannot account for the effects of complex building shapes significantly different from regular cuboids (such as elevated structures), nor for the effects of wind channeling or buffeting caused by nearby structures or terrain. For wind-induced building loads, the complex interaction between the building and the wind typically results in large areas of the structure experiencing wind pressures less than those required by the building codes, as well as local areas with pressures higher than the requirements of the code.

Consequently, more accurate determination of building wind loads permits safe, sustainable, and economical designs under extreme winds.

Analytical methods such as CFD are now able to accurately determine wind pressures and structural system loads, and engineering practitioners are increasingly favoring computational methods over traditional wind tunnel testing.

These methods allow computational modeling of buildings to determine overall structural loading and detailed wind pressure data for the building envelope, including cladding and windows.

The Synthetik team has extended the free and open source code OpenFOAM to support commercial wind modeling projects and this analysis has been validated against field and wind tunnel data during several engineering studies for new and existing structures. During this work, all calculations were performed in accordance with the ASCE Manual of Practice Number 67 on wind-tunnel testing (1999), and ASCE Standard 7-05 on wind loads (2006).