[QUOTE]Originally posted by Greybeard:
"In any event, Bournulli directly discribed the effect of increasing pressure creating a linier increase of volume through a fixed size opening."
Bernoulli's Equation:
Pressure + 1/2(Density)(Velocity Squared) + Pressure Head = constant
For a fixed orifice, the pressure drop across an orifice is proportional to the square root of the velocity. Four times the upstream pressure yields twice the flow through the orifice, provided the downstream pressure remains the same. This does not take into account the change in density for a gas such as air as the pressure changes.
