We have no resources here to make a prototype. I calculated the flow based on when all the holes are uncovered. I have the pressure difference so I used equations similar to the ones here:
http://www.flowmeterdirectory.com/flowmeter_orifice_calc.html
Found a Q per hole and just multiplied by...
I have been running around in circles trying to figure a relation between CFM and SCFM.
I have a perforated bar with 243 holes. The pressure on the inside of the bar to be 2psi. The pressure outside the bar is 1.143psi (there is a web laying on top, which represents the cushion pressure). I...
Excellent. So I have found the flow for each hole. Now do I multiply by the number of holes to get the total flow rate inside the bar? I'm not sure how much lost there will be since the flow is perpendicular to the orifices. Maybe I can make the assumption of uniform flow and ignore the losses...
Good Morning All!
I have a bar (OD: 3.75", ID: 3", Length: 5') with 243 total perforation holes (Dia: 0.094") running air through to create a turn bar for a paper web to rotate over. I have attached my model. I have found the cushion pressure to be 1.143psi. This was found using PC=T/R where T...
