Naively, I would have guessed flow rate to increase as radius^2 (cross sectional... | Hacker News

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		mwint on July 6, 2022 \| parent \| context \| favorite \| on: Large-scale ‘sand battery’ goes online in Finland Naively, I would have guessed flow rate to increase as radius^2 (cross sectional area). Guessing the reason for extra increased flow is some edge effect / turbulence mechanisms?

samatman on July 7, 2022 [–]

Center flow at a given pressure is also square the radius.

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