Blender File : Dune Solver
https://www.dropbox.com/s/9jc9izpokt71gft/027_AM_Feedback_Loop_Dunes.blend?dl=0
Blender File : Sand Wind
https://www.dropbox.com/s/6xvtp02x31j09ji/028_AM_Sand_Wind.blend?dl=0
Inspired by Entagma's video about dune solver in Houdini.
I recreated it inside Geometry Nodes using the Feedback Loop "hack" waiting for a stable version of the Simulation Nodes Build.
Set your timeline to 0 and hit play.
( Blender 3.3 )