Frictional Head loss calculated by input velocity of the fluid flow, the density of the fluid, the orientation of the pipe system (how many bends, whether the bend is horizontal or vertical).
my understanding is that head loss in a pipe depends on flow so suppose in a pipe i have calculated that 1kg/cm2 is head loss at 100 ltr/hr flow .
Case 1 - i put a pump at staring end which will put 100 ltr/hr flow in this pipe at initial pressure of 4kg/cm2 then i conclude that at outlet i will get 100ltr/hr flow at 3 kg/cm2.
Case 2 - i put a pump at staring end which will put 100 ltr/hr flow in this pipe at initial pressure of 6/cm2 then i conclude that at outlet i will get 100ltr/hr flow at 5 kg/cm2.
Do you think my conclusions are correct
In addition, permit me to share a post with you. The source of the post is also attached.
Pressure is defined as force/area which is the same as momentum/area/time since F=dp/dt. Momentum flow would be the momentum passing through a unit area per unit time so it's the same units. More physically, think of a gas at constant pressure in a box. If you popped a little hole of unit area in the side of the box, the pressure would be the amount of momentum escaping per unit time. Hope that helps!
https://physics.stackexchange.com/questions/38511/flow-of-momentum-is-pressure
For incompressible fluids (mostly liquids) your line of thinking is correct. For compressible fluids (gasses) a small correction is required, because now the density depends on the pressure itself.
In addition, permit me to share a post with you. The source of the post is also attached.
Pressure is defined as force/area which is the same as momentum/area/time since F=dp/dt. Momentum flow would be the momentum passing through a unit area per unit time so it's the same units. More physically, think of a gas at constant pressure in a box. If you popped a little hole of unit area in the side of the box, the pressure would be the amount of momentum escaping per unit time. Hope that helps!
https://physics.stackexchange.com/questions/38511/flow-of-momentum-is-pressure
I wonder am I able to differentiate with the help of my eyes between 100 ltr/hr flow at 3kg/cm2 and same flow at 5kg/cm2.
say if i am using transparent pipe.
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