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Running the Simulation
- Run the computation:
# icoFoam/*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: dev | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : dev-e2ccbbbb Exec : icoFoam Date : Jun 16 2017 Time : 08:20:00 Host : $HOSTNAME PID : $$ Case : $FOAM_RUN/cavity nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster allowSystemOperations : Disallowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create mesh for time = 0 PISO: Operating solver in PISO mode Reading transportProperties Reading field p Reading field U Reading/calculating face flux field phi
- Reading mesh, physical constants, initial and boundary conditions.
- The computation starts, iterations are separated with time information.
Starting time loop Time = 0.005 Time = 0.005 Courant Number mean: 0 max: 0 smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 8.90511e-06, No Iterations 19 smoothSolver: Solving for Uy, Initial residual = 0, Final residual = 0, No Iterations 0 DICPCG: Solving for p, Initial residual = 1, Final residual = 0.0492854, No Iterations 12 time step continuity errors : sum local = 0.000466513, global = -1.79995e-19, cumulative = -1.79995e-19 DICPCG: Solving for p, Initial residual = 0.590864, Final residual = 2.65225e-07, No Iterations 35 time step continuity errors : sum local = 2.74685e-09, global = -2.6445e-19, cumulative = -4.44444e-19 ExecutionTime = 0.02 s ClockTime = 0 s Time = 0.01 Courant Number mean: 0.0976825 max: 0.585607 smoothSolver: Solving for Ux, Initial residual = 0.160686, Final residual = 6.83031e-06, No Iterations 19 smoothSolver: Solving for Uy, Initial residual = 0.260828, Final residual = 9.65939e-06, No Iterations 18 DICPCG: Solving for p, Initial residual = 0.428925, Final residual = 0.0103739, No Iterations 22 time step continuity errors : sum local = 0.000110788, global = 3.77194e-19, cumulative = -6.72498e-20 DICPCG: Solving for p, Initial residual = 0.30209, Final residual = 5.26569e-07, No Iterations 33 time step continuity errors : sum local = 6.61987e-09, global = -2.74872e-19, cumulative = -3.42122e-19 ExecutionTime = 0.02 s ClockTime = 0 s Time = 0.015 Courant Number mean: 0.144686 max: 0.758934 smoothSolver: Solving for Ux, Initial residual = 0.0447632, Final residual = 9.12473e-06, No Iterations 15 smoothSolver: Solving for Uy, Initial residual = 0.0817804, Final residual = 6.96014e-06, No Iterations 17 DICPCG: Solving for p, Initial residual = 0.131584, Final residual = 0.00445878, No Iterations 11 time step continuity errors : sum local = 5.30007e-05, global = 2.15729e-19, cumulative = -1.26393e-19 DICPCG: Solving for p, Initial residual = 0.0973392, Final residual = 9.15339e-07, No Iterations 31 time step continuity errors : sum local = 7.57271e-09, global = 6.03676e-19, cumulative = 4.77283e-19 ExecutionTime = 0.02 s ClockTime = 0 s
- The three last iterations are following:
Time = 0.49 Courant Number mean: 0.222158 max: 0.852134 smoothSolver: Solving for Ux, Initial residual = 2.59115e-07, Final residual = 2.59115e-07, No Iterations 0 smoothSolver: Solving for Uy, Initial residual = 5.72577e-07, Final residual = 5.72577e-07, No Iterations 0 DICPCG: Solving for p, Initial residual = 7.65497e-07, Final residual = 7.65497e-07, No Iterations 0 time step continuity errors : sum local = 8.08001e-09, global = 3.9258e-19, cumulative = 8.82842e-18 DICPCG: Solving for p, Initial residual = 1.04767e-06, Final residual = 2.68398e-07, No Iterations 1 time step continuity errors : sum local = 4.00402e-09, global = 6.17738e-19, cumulative = 9.44616e-18 ExecutionTime = 0.19 s ClockTime = 1 s Time = 0.495 Courant Number mean: 0.222158 max: 0.852134 smoothSolver: Solving for Ux, Initial residual = 2.43518e-07, Final residual = 2.43518e-07, No Iterations 0 smoothSolver: Solving for Uy, Initial residual = 5.33314e-07, Final residual = 5.33314e-07, No Iterations 0 DICPCG: Solving for p, Initial residual = 5.25763e-07, Final residual = 5.25763e-07, No Iterations 0 time step continuity errors : sum local = 6.11228e-09, global = 1.51821e-18, cumulative = 1.09644e-17 DICPCG: Solving for p, Initial residual = 7.01015e-07, Final residual = 7.01015e-07, No Iterations 0 time step continuity errors : sum local = 7.5484e-09, global = -4.1723e-19, cumulative = 1.05471e-17 ExecutionTime = 0.19 s ClockTime = 1 s Time = 0.5 Courant Number mean: 0.222158 max: 0.852134 smoothSolver: Solving for Ux, Initial residual = 2.3091e-07, Final residual = 2.3091e-07, No Iterations 0 smoothSolver: Solving for Uy, Initial residual = 5.0684e-07, Final residual = 5.0684e-07, No Iterations 0 DICPCG: Solving for p, Initial residual = 8.63844e-07, Final residual = 8.63844e-07, No Iterations 0 time step continuity errors : sum local = 8.8828e-09, global = 4.94571e-19, cumulative = 1.10417e-17 DICPCG: Solving for p, Initial residual = 9.59103e-07, Final residual = 9.59103e-07, No Iterations 0 time step continuity errors : sum local = 9.66354e-09, global = 1.13175e-18, cumulative = 1.21735e-17 ExecutionTime = 0.2 s ClockTime = 1 s End