Description

This project uses ANSYS Fluent to simulate wind flow through a domain containing three buildings that act as flow barriers—representative of common “flow-around-obstacle” problems (e.g., buildings, wings, propellers, rigs). A horizontal airstream of 5 m/s enters the domain and interacts with the buildings to examine wake development and vortex behavior.

Wind Methodology

The analysis is transient over 1 s with a 0.01 s time step, solved with a pressure-based approach. The 3D geometry (DesignModeler) is a large rectangular region of 120 m × 300 m × 100 m containing three buildings, each 75 m tall. Meshing (ANSYS Meshing) is unstructured with 128,893 elements, with local refinement near building surfaces for accuracy.

Wind Conclusion

Results include pressure and velocity contours, turbulent kinetic energy (TKE), pathlines, and velocity vectors. The highest pressure occurs on the windward faces where the flow first impinges. Vortices form in the leeward wakes of the buildings. All reported fields are evaluated at the final simulation time (t = 1 s).