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I'm using a system that creates water and air jets. The air line pressure is constant at 1.5 bar while the flow rate changes between 100-2500 cm³. The mixing is done with a water pump that operates at 255 rpm and around 500 cm³ of water flow. I want to calculate the output pressure of the mix (water and flow).

How can I calculate it?

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  • $\begingroup$ Flow rate would be volume per unit time, here just states a volume. What is the flow rate for these? $\endgroup$ – Mick Aug 15 '19 at 6:59
  • $\begingroup$ is it cc per minute, ccm? $\endgroup$ – Adrian Howard Aug 15 '19 at 7:25
  • $\begingroup$ with a given flow rate, pressure would depend on outlet diameter, smaller outlet, more restriction, greater pressure to maintain flow rate $\endgroup$ – Adrian Howard Aug 15 '19 at 7:29
  • $\begingroup$ What is this air/water mixture exhausting to? The downstream pressure on your device will have a huge effect on the answer. In addition, a picture would be a big help. $\endgroup$ – David White Aug 15 '19 at 15:04

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