Physical spacing of filaments as a function of the rotational Mach number, ℳ_c (∼v_c/σ), in our simulations (black circles; cf., Section 3.3.2) compared with observations (yellow and blue diamonds). The yellow diamonds are JWST/MIRI observations (Meidt et al. 2023) and the blue diamonds are HST observations (La Vigne et al. 2006). We see that, except for NGC 1365 and NGC 4548, the filament spacing extracted from our simulations agrees within the uncertainty ranges of the ones reported in the observations.