Table 2: Boundary conditions used in the simulations.

Simulation without perforationsSimulation with perforations

InletVelocity inletVelocity inlet
OutletPressure outletPressure outlet
TopPressure outletPressure outlet
BottomPressure outletPressure outlet
Corrugation—baseWall (CA)Wall (CA)
Corrugation—holesWall (CA)Interior
SidesSymmetrySymmetry