gen x's latest activity

Topic about reference frames, center of rotation, postion of origin etc Comoving ref. frame is frame that is attached to moving object...

I hope from this example it is more intuitive, that transferring energy is not just a matter of applying a force, but also of the...

Your numbers seem to come from behind the impeller tip, where it would be normal to have a low-pressure area as the impeller turns. But...

In that case, your calculated value of 88 kPa is absolute as well and below atmospheric pressure. The pump does not know or care what...

Yes you are right, but I think you look at my system too strictly and too literally, so my point of original question is lost. If...

My configuration can achieve P2 lower than atmospheric pressure?

When pump start working, does static pressure rise after the pump(outlet) or only rise dynamic pressure? If yes, than we must add this...

a) initial pressure is 200kPa, open valve fill the pressure and close the valve. Pump is here for circulation not pressure b)from pump...

If have close pipe system with water inside pressurized at P1= 200 000Pa absolute, density 1000kg/m3, wider pipe diameter=2cm...

Isn't weird that pressure is lower than atmosperic pressure, so if you drill hole in that part of turbine housing, air will be sucked in...

If I use data from plot, density=0.4kg/m3, minimum total pressure(blue)= 1.06e+05Pa, velocity=325m/s, using compressible equations I get...

Is total pressure from my post #4 absolute or guage pressure?

What is solution to find pressure P2?

Can you elaborate more, maybe put some power curves plots that support that?

Which engine have wider "power band", more average power around max power rpm-s(rpm range that car use for max acceleration), high revs...