ECOTECT allows you to generate both the geometry and analysis grids for export directly to computational fluid dynamics (CFD) tools such as NIST-FDS, Fluent and WinAir4. After the calculations in these tools are complete, it is then possible to import results back into ECOTECT for display within the context of the original model.

If you set up a 3D analysis grid within your model, ECOTECT can export this information directly to a range of Computational Fluid Dynamics (CFD) tools, the results of which can then be imported.

Once you have the results imported back into ECOTECT, you can choose many different visualisation and persentation options.

This can even be viewed as volumetrically as you move about in 3D.

The same processes can be used to look at air flow both through and around buildings or complex urban environments.

Prevailing Winds

Using data in the hourly weather file, ECOTECT can overlay wind speed and direction directly on top of the current model, making it especially relevant to natural ventilation and wind shelter strategies. This plot can also show temperature, humidity and rainfall, over any date and time range.

Plots of prevailing winds from weather data, showing annual wind frequency and speed (left) and summer wind temperatures (right).

Ventilation

The thermal analysis routines in ECOTECT are based on the CIBSE Admittance Method which does not require detailed air-flow and ventilation information. However, as you can see from the Thermal Gallery page, ECOTECT can be used as a pre and post processor for external computational fluid dynamics tools that fully consider air flows.