# Fluid dynamics

1. Dec 17, 2003

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.

2. Dec 17, 2003

### himanshu121

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. Dec 17, 2003