I was gonna use the data in a school project I'm writing about turbo charging... so In thought I might as well use my dear old Murena as the technical foundation... and who knows... At this rate I might even end up "out nerding" you Anders!!!! (given a decade or two.. obviously)
Haha you just go ahead and try!
Your school project sounds interesting.
I think you can estimate the flow, but the problem is that there are a few restrictions in the circuit, and they will effectively limit it. E.g. the thermostat: only able to open some 10 mm and with sharp edges causing turbolence and resistance, it is probably the major limiting factor to the water flow. As for the water pump, I think you can estimate the flow figure by the amount of water being rotated by the impeller multiplied by the speed with which it rotates. Ask your teacher if he will accept that. Fluid mechanics is not that easy... (and not my specialty).
- Anders