hi evrybody

In the article “Choice of units in lattice Boltzmann simulations” and the paper “Asymptotic analysis of the lattice Boltzmann equation” for incompressible flows,it is shown that delta(t)=O(delta(x)^2)

question: what are the dimension of delta(t) and delta(x)?

delta_x could be in [m], [mm], [micrometer] …

delta_t could be in [seconds],[miliseconds]…

delta(x)*(lbm_length)=(physical_length)
delta(t)*(lbm_time)=(physical_time)