  A prototype of a single-gap glass Resistive Plate Chamber (RPC) is
constructed by the authors. To find the considerations required for better
operation of the detector's gas system, we have simulated the flow of the Ar
gas through the detector by using computational fluid dynamic methods.
Simulations show that the pressure inside the chamber linearly depends on the
gas flow rate and the chamber's output hose length. The simulation results were
compatible with experiments. We have found that the pressure-driven speed of
the gas molecules is two orders of magnitude larger in the inlet and outlet
regions than the blocked corners of a 14x14 cm2 chamber, and most likely seems
to be higher for larger detectors and different geometries.
