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I am stuck on a problem, and it's been a while since I took fluid dynamics. I have a cylindrical tank of know capacity with an inlet, where a vent is attached, and an outlet, the fluid gets sucked. The tank has fluid in there with known volume and density. If I know the usage rate of the fluid, what equation would I use to calculate the volumetric flow rate of the air coming through the vent opening replacing the fluid fluid. Vent is exposed to the outside ambient pressure and temperature.

Unknown: Volumetric flow rate of the air going into the tank

Equation: I am pretty sure you have to use continuity equation some how, but now idea how to apply it. Or I might be completely off?

Can anyone help me get started in the right direction?

Thanks,

Abe

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# Volumetric flow rate of air into a tank - Fluid Mechanics

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