Wow, this is getting complicated!
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I wish I knew something more about fluid flow
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Marco, I hear ya. I am not an engineer so this is starting to get a little
above my head.
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you want to find the ID of the inlet, not the hose.
then do this R= radius (1/2 of the ID) area of inlet = 3.14 x R x R then take the area and divide it by the # of channels you are going to use. the resulting # is the area that each channel should be.
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DigitalChaos, I did the calculation for the channel cross section area. The inlet is 1/2" or 6.35mm^2 x PI is 126.7mm. You divide that by 8 channels and it is about 15.8mm channels. That is TINY! 5/32"^2 or thereabouts. So I figured if I doubled the area of the output area to 253mm then I could run 8 channels 3/16" wide by 1/4" deep.
I hear ya on the differential speed going through the channels but would that make a big difference if it was all moving?