Scaling laws by degree of knownness
From apm
Revision as of 17:25, 15 August 2023 by Apm (Talk | contribs) (→Somewhat known: added explanation to constant speeds across scales and note on more speed related dissipation scaling lasw: unwritten page Accidental heatpump bearing)
Contents
Very widely known
ATM barely any descriptions on the listed pages here. Most is on page: Scaling law.
I advise visiting any of the countless sources on the web for details.
- Twice the surface area of half the volume
- Thousandfold lower mass of tenfold smaller machinery
- Twice the frequency of half sized machinery
Somewhat known
More details here:
- Same absolute speeds for smaller machinery
Usually formulated indirectly by stating that machine frequencies rise linearly with falling size.
Not a size but a speed scaling law:
- Hundredfold smaller frictionlosses from tenfold slowdown
There might still be dissipation mechanisms that scale differently.
See: Accidental heatpump bearing
Very poorly known (but very important)
Less relevant but a bit flabbergasting:
External links
(It's a word: https://en.wiktionary.org/wiki/knownness)
