Header CHECK KEYWORDS Warn Mesh DB "." "." Include Path "" Results Directory "" End Simulation Max Output Level = 5 Coordinate System = Cartesian Coordinate Mapping(3) = 1 2 3 Simulation Type = Steady state Steady State Max Iterations = 1 Output Intervals = 1 Timestepping Method = BDF BDF Order = 1 Angular Frequency = $ 2*pi*2500 Solver Input File = case.sif Post File = case.vtu End Constants Gravity(4) = 0 -1 0 9.82 Stefan Boltzmann = 5.67e-08 Permittivity of Vacuum = 8.8542e-12 Boltzmann Constant = 1.3807e-23 Unit Charge = 1.602e-19 End Body 1 Target Bodies(1) = 1 Name = "Body 1" Equation = 1 Material = 1 End Solver 1 Equation = Helmholtz Equation Procedure = "HelmholtzSolve" "HelmholtzSolver" Variable = -dofs 2 Pressure Wave Exec Solver = Always Stabilize = True Bubbles = False Lumped Mass Matrix = False Optimize Bandwidth = True Steady State Convergence Tolerance = 1.0e-5 Nonlinear System Convergence Tolerance = 1.0e-7 Nonlinear System Max Iterations = 15 Nonlinear System Newton After Iterations = 3 Nonlinear System Newton After Tolerance = 1.0e-3 Nonlinear System Relaxation Factor = 1 Linear System Solver = Iterative Linear System Iterative Method = BiCGStab Linear System Max Iterations = 350 Linear System Convergence Tolerance = 1.0e-10 BiCGstabl polynomial degree = 2 Linear System Preconditioning = Diagonal Linear System ILUT Tolerance = 1.0e-3 Linear System Abort Not Converged = False Linear System Residual Output = 1 Linear System Precondition Recompute = 1 End Equation 1 Name = "Equation 1" Active Solvers(2) = 1 2 End Material 1 Name = "Air (room temperature)" Viscosity = 1.983e-5 Heat expansion Coefficient = 3.43e-3 Heat Conductivity = 0.0257 Relative Permittivity = 1.00059 Sound speed = 343.0 Heat Capacity = 1005.0 Density = 1.205 End Boundary Condition 1 Target Boundaries(1) = 4 Name = "Driver" Wave Flux 1 = 1 End Boundary Condition 2 Target Boundaries(1) = 3 Name = "Farfield" Wave impedance 1 = 343 End Boundary Condition 3 Target Boundaries(1) = 1 Name = "Baffle" Wave Flux 1 = 0.0 Wave Flux 2 = 0.0 End