Complex Antenna model simulation

Unleashing the Power of Vento's NCG Solution on a Complex Antenna Model.

Discover how Vento’s Non-Conformal Grid (NCG) technique tackles a high-quality STL model of a telecommunication antenna with 180k triangles and intricate geometrical details.

We tested three mesh levels—coarse (2.4 million cells), medium (7.5 million cells), and fine (32.9 million cells)—to evaluate the forces on the antennas and the entire structure. The tower and guy wires were treated as "sub-grid," while the antennas were fully resolved by the chosen cell size.

Key Findings:

1) Even the coarse grid captured the guy wires, with results differing by only about 3% from the fine mesh.

2) The coarse mesh ran in less than 7 seconds per iteration (using six i7 cores), while the fine mesh took approximately 60 seconds per iteration (with ten i9 cores).

3) The coarse simulation reached steady-state convergence after 3000 iterations, with medium and fine meshes converging after 4000 iterations.

In comparison, meshing this case with Snappy, the cut-cell mesh generator of OpenFOAM, resulted in over 50 million cells and required extensive STL cleaning.

For more information, visit www.vento-cfd.com, contact us at info@vento-cfd.com, or send us a request.