Fair point, but I think you are over complicating things.
And I did so on purpose.
I might be in the wrong here, but allow me to explain how I think, and feel free to correct me.
The difference in pressure causes a net force, which drives the air forward.
Given a pressure...
\int\int\frac{df}{dx}\frac{df}{dy}dydx
Keep in mind that we do not apply the same concept as we do indefinite integral, the integral has to be bounded by a plane (may it be 2,3, or more)
At what speed (flow/volume for that matter) does air leave an outlet when you know it holds x bars in the pipe?
(It goes from x to zero (or athmospheric) -- you know the pressure difference)
I assume you can neglect relative roughness, resistance, and so on as the pressure drop is over...
Excellent answer!
I guess I could've phrased my question a little better.
At what speed does the air leave the outlet when you know it holds 7 bars in the pipe?
Thanks a lot for the quick response :)
(Anyone know a page where I can find general forumlas regarding compressed air?)...
Hi,
I want to know how high the flow rate trough a pipe is (outlet), but I only now the pressure difference (0.7MPa or 7 bar), and the diameter of the pipe.
At what speed (or for that matter volume) does air leave a pipe when the pressure difference is 7 bar, and the diameter is 25.4mm...