! transient cavity lid case with Re=100 $ p0 = 0.0 $ v0 = 1.0 $ visc = 0.01 $ dens = 1.0 Header CHECK KEYWORDS Warn Mesh DB "." "square" Include Path "" Results Directory "" End Simulation Max Output Level = 5 Coordinate System = Cartesian Simulation Type = Transient Steady State Max Iterations = 1 Timestep Intervals = 20 Timestep Sizes = 0.1 Output Intervals = 0 Timestepping method = bdf BDF Order = 2 Post File = case.vtu Set Dirichlet BCs by BC Numbering = True 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 Initial Condition = 1 End Initial Condition 1 Velocity 1 = 1.0e-9 Velocity 2 = 0.0 Pressure = $ p0 End Solver 1 Equation = Navier-Stokes Stabilization Method=Stabilized Steady State Convergence Tolerance = 1.0e-5 Nonlinear System Convergence Tolerance = 1.0e-8 Nonlinear System Max Iterations = 20 Nonlinear System Newton After Iterations = 3 Nonlinear System Relaxation Factor = 1 Nonlinear System Newton After Tolerance = 1.0e-3 Linear System Solver = Iterative Linear System Symmetric = True Linear System Iterative Method = BicgstabL BiCGStabl polynomial degree = 4 Linear System Max Iterations = 500 Linear System Convergence Tolerance = 1.0e-10 Linear System Residual Output = 10 Linear System Preconditioning = ILU0 End Equation 1 :: Active Solvers=1 Material 1 Density = $ dens Viscosity = $ visc End Boundary Condition 1 Target Boundaries(3) = 1 2 4 Name = "NoSlip" Velocity 1 = 0.0 Velocity 2 = 0.0 End Boundary Condition 2 Target Boundaries(1) = 3 Name = "Top" Velocity 1 = $ v0 Velocity 2 = 0.0 End ! Fix pressure at one node in the center of mesh Boundary Condition 3 Target Coordinates(1,2) = 0.5 0.5 Name = "FixPressure" Pressure = $ p0 End Solver 1 :: Reference Norm = Real 2.056714E-01 RUN
