Depressurization solutions of vented enclosures during launch

It is often necessary to vent an enclosure to allow a controlled depressurization when it is exposed to a decreasing external pressure. This paper derives analytical expressions that can be used to estimate this depressurization. These analytical expressions allow the design of enclosures intended for space launch and other applications. The analytical solutions are compared to numerical solutions and validated by a series of experiments which demonstrate their accuracy.