Quote:
|
Originally Posted by Butcher
Additionally, Bernoulli only works for non-vicious fluids, which water isn't.
|
Bernoulli Law is a special case but demonstrates a principle and it can bve used for viscous fluids if it is assumed that distance between non-restriction and restrion parts of a loops is so small taht viscous losses do not have any effect.
If theoretical approach does not work try an experiment at home. hav an open loop with thrre blocks and a rad. One setup has block just after the pump and the second has same block as the last thing on the line before discharge. Which one is better for this block? Flow is constant through both systems.
Pressure loss in a loop is basic fact and you are right that it is contributed to viscous loses. This is basically where using ernoulli velocity decreases despite aperture size decrease and to make it all tick pressure must drop
.
Oh, and
this one should be able to answer some of your questions I hope
*hint* mass conservation*end hint*