Flow rate through an open sluice

[lemlems]

Does anyone know, is there a fixed rate of flow through an open sluice or does it vary based on the number of sources behind it? If I boxed in, for example, 3 water sources with only one open sluice for the water to escape through would the cms in front of the sluice act like if the 3 sources worth of water was getting funnelled through a one block gap or would the cms be limited by there only being one sluice?

[Cockadoodledoo]

I dont think so, but you can test with a stream gauge. Just be aware that there is a limitation on water falling down levels, the limit is 2.2 cms per edge of a block/tile.

[Lil Puppy]

Flow rate is total flow rate of all sources regardless of aperture.
3 sources into one output hole is 3 output worth. So technically, pressure is a thing in this case. If your shaft is vertical, the result at the output end at the top will be that the water will rise above the output significantly more than if you just had a single source.
There are 2 different source blocks though and they have different output rates.

[AetherLiger]

The max non-pressirized flow in a horizontal direction is 6.6cms and in waterfall mode is 2.2cms for each edge.

In pressurized environments the horizontal direction can go way higher. (I saw 30 in one of my settlements)

So yeah the Sluice will also follow those rules.

[Sholomar]

That flow limit over edges comes in quite handy when remaking parts of water containing structures. It used to bother me but come to appreciate it. Keep the edges different and it won't all flow out while remaking areas using explosives.

[chaney]

Does anyone know how the flow rate is actually determined? I'd guess it is based on something like the difference of heights of adjacent cells, maybe some momentum, probably 3D. Would like to understand it to better optimize :)