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Running the Test Case
- Run the computation:
# icoFoam/*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.2.1 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : 2.2.1 Exec : icoFoam Date : Aug 01 2013 Time : 12:00:00 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 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 Courant Number mean: 0 max: 0 DILUPBiCG: Solving for Ux, Initial residual = 1, Final residual = 2.96338e-06, No Iterations 8 DILUPBiCG: Solving for Uy, Initial residual = 0, Final residual = 0, No Iterations 0 DICPCG: Solving for p, Initial residual = 1, Final residual = 7.55402e-07, No Iterations 35 time step continuity errors : sum local = 5.03809e-09, global = 1.36319e-19, cumulative = 1.36319e-19 DICPCG: Solving for p, Initial residual = 0.523591, Final residual = 9.72352e-07, No Iterations 34 time step continuity errors : sum local = 1.07766e-08, global = 6.72994e-19, cumulative = 8.09314e-19 ExecutionTime = 0.01 s ClockTime = 0 s Time = 0.01 Courant Number mean: 0.0976805 max: 0.585722 DILUPBiCG: Solving for Ux, Initial residual = 0.148584, Final residual = 7.15711e-06, No Iterations 6 DILUPBiCG: Solving for Uy, Initial residual = 0.256618, Final residual = 8.94127e-06, No Iterations 6 DICPCG: Solving for p, Initial residual = 0.379232, Final residual = 3.38648e-07, No Iterations 34 time step continuity errors : sum local = 3.15698e-09, global = -8.13946e-20, cumulative = 7.27919e-19 DICPCG: Solving for p, Initial residual = 0.286937, Final residual = 5.99637e-07, No Iterations 33 time step continuity errors : sum local = 6.08774e-09, global = 5.265e-20, cumulative = 7.80569e-19 ExecutionTime = 0.01 s ClockTime = 0 s Time = 0.015 Courant Number mean: 0.144685 max: 0.758286 DILUPBiCG: Solving for Ux, Initial residual = 0.0448669, Final residual = 2.39894e-06, No Iterations 6 DILUPBiCG: Solving for Uy, Initial residual = 0.0782408, Final residual = 1.45948e-06, No Iterations 7 DICPCG: Solving for p, Initial residual = 0.109591, Final residual = 5.81093e-07, No Iterations 32 time step continuity errors : sum local = 4.70049e-09, global = -4.48828e-19, cumulative = 3.31741e-19 DICPCG: Solving for p, Initial residual = 0.0826507, Final residual = 7.26561e-07, No Iterations 31 time step continuity errors : sum local = 5.95385e-09, global = 6.69768e-19, cumulative = 1.00151e-18 ExecutionTime = 0.02 s ClockTime = 0 s
- The last three iterations are following:
Time = 0.49 Courant Number mean: 0.222158 max: 0.852134 DILUPBiCG: Solving for Ux, Initial residual = 2.09588e-07, Final residual = 2.09588e-07, No Iterations 0 DILUPBiCG: Solving for Uy, Initial residual = 4.59868e-07, Final residual = 4.59868e-07, No Iterations 0 DICPCG: Solving for p, Initial residual = 8.08884e-07, Final residual = 8.08884e-07, No Iterations 0 time step continuity errors : sum local = 9.1113e-09, global = -6.21295e-19, cumulative = 1.23378e-18 DICPCG: Solving for p, Initial residual = 9.46436e-07, Final residual = 9.46436e-07, No Iterations 0 time step continuity errors : sum local = 1.02383e-08, global = 8.16345e-19, cumulative = 2.05013e-18 ExecutionTime = 0.26 s ClockTime = 0 s Time = 0.495 Courant Number mean: 0.222158 max: 0.852134 DILUPBiCG: Solving for Ux, Initial residual = 1.99665e-07, Final residual = 1.99665e-07, No Iterations 0 DILUPBiCG: Solving for Uy, Initial residual = 4.36311e-07, Final residual = 4.36311e-07, No Iterations 0 DICPCG: Solving for p, Initial residual = 1.0746e-06, Final residual = 3.53797e-07, No Iterations 1 time step continuity errors : sum local = 5.37651e-09, global = -6.05083e-19, cumulative = 1.44504e-18 DICPCG: Solving for p, Initial residual = 6.81574e-07, Final residual = 6.81574e-07, No Iterations 0 time step continuity errors : sum local = 8.06059e-09, global = 1.8016e-19, cumulative = 1.6252e-18 ExecutionTime = 0.26 s ClockTime = 0 s Time = 0.5 Courant Number mean: 0.222158 max: 0.852134 DILUPBiCG: Solving for Ux, Initial residual = 1.89493e-07, Final residual = 1.89493e-07, No Iterations 0 DILUPBiCG: Solving for Uy, Initial residual = 4.14522e-07, Final residual = 4.14522e-07, No Iterations 0 DICPCG: Solving for p, Initial residual = 1.06665e-06, Final residual = 3.39604e-07, No Iterations 1 time step continuity errors : sum local = 5.25344e-09, global = -1.05077e-18, cumulative = 5.74436e-19 DICPCG: Solving for p, Initial residual = 5.36118e-07, Final residual = 5.36118e-07, No Iterations 0 time step continuity errors : sum local = 6.86432e-09, global = 6.34696e-19, cumulative = 1.20913e-18 ExecutionTime = 0.27 s ClockTime = 0 s End