a new wall reflection BC for complex geometry

[garcfd]

I developed a method called wall ‘reflection’ (to overcome the limitations of bounce-back), which works for complex geometry such as this Porsche. I also combined this with a simple method for increasing the wall velocity, such that you get a high velocity at the wall surface. It seems to run ok for this 100 million cell 3D Porsche geometry which ran for 40k iterations on a single GPU.

UFOLBM Porsche demo

[Adrian]

Looks nice! Do you want to add this to OpenLB? If so we are always interested in new contributors.

[garcfd]

Hi Adrian, thanks for your comments. I’m not sure about my ability to code OpenLB myself, (my code is Fortran) but I would be happy to work with (explain the method) to someone else who is familiar with coding in OpenLB.
Regards Giles.

[garcfd]

porsche animation

[garcfd]

I put some details of the approach here in case anyone wants to give it a try:
https://docs.google.com/presentation/d/1aXyArj2_nsMdsfY9GIQVvt6nI69F3QBoqEMKDnpeoEU

[Author]

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