Question: Does Increasing Fluid Speed Increase Temperature?

[ravdogster]

Hi, I have a question about fluid temperature.

I have a vague understanding that a fluid's temperature is its average kinetic energy. So, a hotter fluid has faster moving molecules on average.

What I'm wondering is, if you force water out of a faucet harder to make the water come out faster, does this increase its temperature? If the water falls out faster, does that mean it has a higher kinetic energy, and therefore temperature, than if it came out slower?

Thanks!

 

[torquil]

The fluid temperature is related to the magnitude of the thermal motion of the molecules in the fluid, not the collective motion of the fluid as a whole.