Fluid dynamics of container of gas

  • Thread starter radagast
  • Start date
  • #1
462
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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.
 

Answers and Replies

  • #2
650
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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
 
  • #3
462
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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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