Simulate sand patterns driven by wind, based on Werner model. The time evolution is saved as a video.
See --help option for more detail.
python simulate.py # Simulates with default settings
python simulate.py -w 6.0 # Sets wind speed to 6.0python simulate.py -d # Enables dune simulation mode, forming Barchan dunes by default
python simulate.py -d -q 3.0 # Sets sand quantity to 3.0, forming transverse ridges
# Sets sand quantity, num iteration, grid size, and random seed
python simulate.py -d -q 3.0 -i 5000 -g 140 -s 0