4 ms·
I love nautilus because it can make the most seemingly inane things incredibly interesting. I've never thought about turbulence at all; or even guessed it would
by Vexs 11y ago
I love nautilus because it can make the most seemingly inane things incredibly interesting. I've never thought about turbulence at all; or even guessed it would be difficult to figure out the cause but this, for lack of a better term, opened my eyes.
- semi-extrinsic 11y agoFeynman described turbulence as "the most important unsolved problem of classical physics." Another quote, attributed both to Heisenberg and to Horace Lamb: "When I meet God, I am going to ask him two questions: Why relativity? And why turbulence? I really believe he will have an answer for the first." And the very related problem of the existence and smoothness of solutions to the Navier-Stokes equations is one of the famous millennium problems.
- stefanomazzalai 11y agoUnless you have access to a DOE-grade supercomputer :) good interview here w/ one of the pioneers of Large Eddy Simulation for turbulence physics: http://www.cascadetechnologies.com/pioneering-large-eddy-simulation-an-afternoon-with-prof-parviz-moin-part-i/ http://www.cascadetechnologies.com/pioneering-large-eddy-sim...
- semi-extrinsic 11y agoLES 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.