Square lattice with periodic boundary conditions and two species with diffusion dynamics and annihilation reaction A + B -> 0.
Lattice of size 10'000 x 10'000 with initial density 1.0 with very long simulation time (using Fortran): animation
Custom size below. Note that JavaScript is significantly slower than Fortran, hence the smaller lattices and potential inaccuracies in the diffusion coefficient due to finite size effects and the presence of non-overlapping particles on uncorrelated networks. Every few iterations, equal to a given fraction of the grid size, the two grids are being re-correlated, which may cause more inaccuracies in particle dynamics. This however allows annihilation of all particles.
