CFD AS A BUILDING SERVICES ENGINEERING TOOL

The use of computational fluid dynamics (CFD) as part of the design of new buildings and assessment of existing buildings is compared with its use for research into such areas as ventilation, thermal comfort, contaminant transport and fire safety. The very severe demands on project time and cost make the setting up (pre-processing) of the engineering problem and the (visual) assessment of the flow solutions as important as the solution capability of the CFD software. Through five examples ranging from photocopier emissions to heat stacking effects in air wells, the way that CFD is used as an engineering tool is demonstrated. The emerging role of CFD in relation to regulatory procedures is discussed and the resources needed to exploit CFD are indicated.

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