LES is an approximation, and there are cruder (RANS) and finer (DNS) ones available. And while these are very cool and useful e.g. for studying how turbulence a

LES is an approximation, and there are cruder (RANS) and finer (DNS) ones available. And while these are very cool and useful e.g. for studying how turbulence affects other things (structures, particle in suspension etc.) they don't tell us much about turbulence itself.