Fluid dynamics of container of gas

AI Thread Summary
To compute the rate at which gas exits a hole in a container, the formula involves the pressure differential, area of the hole, and the molecular mass of the gas. The exit velocity is directly proportional to the pressure and area, while it is inversely proportional to the square root of the molecular mass, assuming ideal gas behavior. A constant, known as the discharge coefficient, is also included in the formula to account for real-world factors. For typical air, this constant is approximately 0.61. Understanding these relationships helps in estimating gas flow rates from containers effectively.
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Given a container with a gas, assuming a constant internal/external pressure differential, with a hole of a particular diameter/area, what is formula to compute the rate at which the gas exits the hole.

Assume we're talking ideal gas or air and anything else that I haven't given, but are needed.

You might also assume you're speaking to someone with little or no fluid dynamics under his belt.
 
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it is inversely proportional to square root of molecular mass of the gas assuming ideal behaviour

and directly proportional to Pressure and Area of hole
 
Thanks.

I assume it would also include some constant. If so, what would the constant be for a typical ideal gas or air? Just getting it into the right ball park is fine - I'm not computing anything exact.
 

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