The effectiveness of the suction hole increases with decreasing ambient pressure. Thus, the maximum effect would occur in space. Since CFD needs to model an actual fluid in order to solve the Navier-Stokes equations, the true vacuum of space is not solvable. Instead the pressure was approximated to 0.001 psia, and 410 R. These conditions were assumed to be a sufficient representation of space. A CFD solution was assumed to be converged when the mass flow rate through the exit was converged, or stopped noticeably changing with each iteration. Figure 13 shows a sample mass flow monitor