Side holes on pipes :how it affect fluid flow rate/pressure

[edwardone123]

How side holes on the tube will affect fluid flow rate /pressure drop ?
Does distance from the tip will affect flow rate ?
Thank you

 

[hydromech]

What tip?

What flow rate?

What fluid?

How big is the hole?

The actual delta P depends on the above, but you can expect the value to be negligible based on the fact that fluid velocity is slower by the wall of the tube and fastest in the centre.

To know for sure, you would have to measure the pressure either side of the hole.

Adrian

 

[edwardone123]

Ideal flow rate 550-650 ml /min
Fluid -blood
size of the hole variable :I can adjust it anyway to make flow
rate bigger : i have two sizes of pipe where i can apply it :
first pipe OD 2.8 mm ,second pipe OD 1.6 mm .How large in your opinion should be sideholes to come into play ?
What do you mean by tip?

 

[hydromech]

"tip" came from your first question - "Does distance from the tip will affect flow rate ?"

Can we look at this from a different direction..?

What are you trying to achieve?

Normally fluid has flow boundary layers, I am not sure the same laws apply to blood. How to measure the pressure loss is a question?

 

[edwardone123]

tip its end hole.will the distance from endhole to sidehole affect
flow rate ?How size of sidehole will affect flow rate ?
trying to achieve max flow rate .limited by pressure neg pressure cannot be more than 260-270 mm Hg
Of course will try to keep diameter as large as possible and length as short as possible
What do u mean "Can we look at this from a different direction? "
Blood has same boundary layers .