- #1
ZalienMC
- 1
- 0
Hello every one.
This is my first post here so be gentle if i placed my topic in the wrong section.
My problem is as following.
I am trying to calculate the speed of the water which exits true a metal plate full of cirkulare holes.
The metal plate is square and and has 14 holes each with a diameter of 14mm.
On top of the plate is a watercolum with a total hight of 50cm.
The water runs true the plate into free air so there is no pressure working against the flow.
I want to use the calculated speed of the water to make a graph which shows water mass on the x-axis and pressure drop on the y-axis.
I have come across following formulas:
Volume = surfuce area of holes * speed of water
press loss = zeta * (1/2)*zeta*water speed^2
I am not sure that the last calculation is correct and i have bin unable to find the zeta value in any books of mine.
im guessing its a value which relates to the size of the hole and the dynamics of water.
I have that some of you can give me a push in the right direktion.
Sorry for spelling errors.
Best regards.
This is my first post here so be gentle if i placed my topic in the wrong section.
My problem is as following.
I am trying to calculate the speed of the water which exits true a metal plate full of cirkulare holes.
The metal plate is square and and has 14 holes each with a diameter of 14mm.
On top of the plate is a watercolum with a total hight of 50cm.
The water runs true the plate into free air so there is no pressure working against the flow.
I want to use the calculated speed of the water to make a graph which shows water mass on the x-axis and pressure drop on the y-axis.
I have come across following formulas:
Volume = surfuce area of holes * speed of water
press loss = zeta * (1/2)*zeta*water speed^2
I am not sure that the last calculation is correct and i have bin unable to find the zeta value in any books of mine.
im guessing its a value which relates to the size of the hole and the dynamics of water.
I have that some of you can give me a push in the right direktion.
Sorry for spelling errors.
Best regards.