Description

This project uses ANSYS Fluent to simulate wind flow around three buildings arranged in a triangular configuration, treating the buildings as flow barriers. A horizontal wind of 5 m/s enters the surrounding domain and interacts with the structures. The goal is to examine how the flow evolves around and between the buildings.

Methodology

The 3D geometry is created in DesignModeler. Meshing is performed in ANSYS Meshing with an unstructured grid totaling 6,392,910 elements; cells near the building surfaces are locally refined for higher accuracy.

Conclusion

Post-processing provides velocity and pressure contours, velocity vectors, and 2D pathlines. Results show peak wind speed at the building tips (windward edges), followed by separation and vortex formation in the wakes. Behind the middle building, the separated flow forms a symmetric, coupled vortex pair that combines into a larger wake structure than those behind the other two buildings. Pressure contours indicate the highest pressure on the windward face of the middle building.