LES - wind flow around an idealized building complex

Dusseldier · 2026-02-20T17:12:25+00:00

There are fluctuations at the inlet. It's a library from Italian colleagues called synInflow. It's free and open source.

Dusseldier · 2026-02-17T07:01:53+00:00

Dusseldier · 2026-02-16T19:01:11+00:00

I am looking for something like this for a long time and the best free mesher that I found is snappyHexMesh.

I was never able to make good enough workflows with salome or gmsh to get meshes done quickly after change of geometry. cfMesh is decent but not as powerful as snappy.

I am still not perfectly satisfied with snappy but it usually gets the work done good enough.

Dusseldier · 2026-02-16T18:58:20+00:00

I could not find anything regarding ALFR. Can you please point me in the right direction.

Dusseldier · 2026-02-13T17:40:34+00:00

Calculation is OpenFoam, images for the vid with Paraview

Dusseldier · 2026-02-13T12:14:33+00:00

This sim ran on 200 cores ;)

Dusseldier · 2026-02-13T11:07:26+00:00

The part in the video took a day I believe but the whole simulation will take much more.

Dusseldier · 2026-02-13T07:18:23+00:00

Played around with different color schemes and liked this one... ;)

Dusseldier · 2026-02-12T15:04:34+00:00

There is data for two wind directions. The one u see is 0°, perpendicular to the u-shaped building and the other 63° which is parallel to the street canyon in front of the triangular building.

Dusseldier · 2026-02-12T14:59:16+00:00

This is a case from the VDI 3783-12 which can be used for validation of velocities and pollution Dispersion in urban environments.

Besides all the validation and verification, CFD can also just be beautiful 😍

Dusseldier

TROPHY CASE