- #1
Trigger32
- 7
- 0
I am trying to find the total head loss of an air passageway system but I have not taken a fluids class. I have been trying to teach myself the equations and principles but it tends to be very confusing without guidance. So here is my question:
I have a wheel-end knuckle with an air passage put through it. The passage is not a pipe but a diameter cut into the actual material (ductile iron). The passage takes two 90 degree sharp bends and then exits the knuckle. Now i am fairly certain that I understand how to calculate a straight line head drop with no bends. My confusion is coming from finding specific k-values for these pipe bends and also completely turbulent friction factors.
If someone could show me a calculation and also explain what they are doing for one bend, I think that I could solve the rest of the problem.
Here are some details of my passage:
Diameter before bend - 10 mm
Diameter after bend - 9.5 mm
Degree of bend - 90
Material Type - Ductile Iron
Initial air flow rate- 0.3 cfs
P.S. I believe this would be considered a Mitre Bend because it as a sharp angle (not sure though)
I have a wheel-end knuckle with an air passage put through it. The passage is not a pipe but a diameter cut into the actual material (ductile iron). The passage takes two 90 degree sharp bends and then exits the knuckle. Now i am fairly certain that I understand how to calculate a straight line head drop with no bends. My confusion is coming from finding specific k-values for these pipe bends and also completely turbulent friction factors.
If someone could show me a calculation and also explain what they are doing for one bend, I think that I could solve the rest of the problem.
Here are some details of my passage:
Diameter before bend - 10 mm
Diameter after bend - 9.5 mm
Degree of bend - 90
Material Type - Ductile Iron
Initial air flow rate- 0.3 cfs
P.S. I believe this would be considered a Mitre Bend because it as a sharp angle (not sure though)