[electrip_flip]

Originally posted by bigben2k
I think you've got the "growing" part backwards

The flow will take the path of least resistance, and that's the channel(s) closest to the outlet.

But if you reverse the "growing" part, then you're left with a small outlet unless you make it all bigger

Flow tuning... I hate it.

This a major misconception.
The path of least resistance is _all_ possible paths in parallel.
Especially when each single spiral channel is a sufficient resistance
to the flow caused by the pump flow is distributed more equally.

The whole block looks like francis-turbine with its rotor not rotating
and reverse flow direction (pump setup).

Sorry for my english,
i'm from good ol' europe.

Philipp