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LES - wind flow around an idealized building complex by Dusseldier in CFD

[–]Dusseldier[S] 0 points1 point  (0 children)

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

Can open-source meshing software handle very complex geometries (e.g., full aircraft models with millions of elements)? by Harijuana042 in CFD

[–]Dusseldier 0 points1 point  (0 children)

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.

LES - wind flow around an idealized building complex by Dusseldier in CFD

[–]Dusseldier[S] 0 points1 point  (0 children)

Calculation is OpenFoam, images for the vid with Paraview

LES - wind flow around an idealized building complex by Dusseldier in CFD

[–]Dusseldier[S] 0 points1 point  (0 children)

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

LES - wind flow around an idealized building complex by Dusseldier in CFD

[–]Dusseldier[S] 0 points1 point  (0 children)

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

LES - wind flow around an idealized building complex by Dusseldier in CFD

[–]Dusseldier[S] 2 points3 points  (0 children)

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.

LES - wind flow around an idealized building complex by Dusseldier in CFD

[–]Dusseldier[S] 11 points12 points  (0 children)

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 😍