Math

[DefconWombat]

Before I set to making lots of holes in a length of pipe, is anyone aware of a magic formula for pipe diameter and length to hole diameter and quantity to flow rate?

 

[Le duke]

Before I set to making lots of holes in a length of pipe, is anyone aware of a magic formula for pipe diameter and length to hole diameter and quantity to flow rate?

This could be pretty useful:

FLOW RATE CALCULATOR

Flow rate calculator, pipe diameter, volume, time, liters, gallons, cubic feet, cubic inches, seconds, minutes, hours

www.1728.org

Sent from my iPhone using Tapatalk

 

[MichaelJ]

@Le duke beat me to the punch. 👍

If your interested in more background, this might be helpful:

https://www.sciencedirect.com/topics/engineering/hagen-poiseuille-equation#:~:text=The%20Hagen%E2%80%93Poiseuille%20equation%20describes,(%20V%20%3D%20R%20I%20).

Cheers,
Michael

 

[DefconWombat]

Thank you both for the above.
I did however forget to put in my original question that this is for a spray bar 🙈

 

[John q]

This thread may or may not help.

DIY Spray Bar

Hi all I’m putting a spray bar on my trigon 350 it will be situated along the front curved glass Making it from plumbsure 15mm pushfit pipe The pump is an Eheim compact + 3000 Set on its highest at 3000 litres per hour I know the 15mm pipe is too small for the pump but it fits below the...

www.ukaps.org

I'd guess trail and error will be needed even with the aid of maths.