Hi, i have some measured data, that when you plot them will result in a 3rd order polynomium.
Anyone know of a way to calculate the 3rd order coefficients???
An additional comment:
I am going to make an application that can load pump curve and power curve coefficients into a frequenzy converter.
Has anyone any experience with this? Or know of a similar program???
Ohhh...
for instance a water hose.
When u put ur thumb in front of it, and only let a little slip out, the pressure is high, but almost no flow....
and when u take ur thumb off of it, the pressure is low, but the flow is high...
thanx i get it now :D
hi, im kinda new here, but ill ask anyways.
We all know what a pump curve looks like
example here
http://www.mcnallyinstitute.com/02-html/2-03.html
i dont understand it though. When the capacity is low, the pressure (head) is high. That doesn't make sense to me.
When the pump only lets 1...