ABSTRACT
A simple incompressible flow experiment was conducted in depressurizing a 0.042 m3 (11 gal) air tank from 5.4 to 1.5 atm (80–22.5 psia) through a sharp-edged orifice. A mathematical model was developed to predict the pressure in the air tank as a function of time using fluid flow equations and an Euler integration. The model predicted the experimental data very well, with a maximum variance from the data of 14% for the initial experimental time step of 0–75 s.
