关于算例还在运行,但时间步不动了的问题



  • 算的是一个流固耦合的算例,设置的时长为30s,时间步为0.0008s,但就像下面log文件所示,跑到21.6s就不动了,库朗数和时间步也都没有问题,可后台的算例仍在运行,不知道有人遇到过这种情况吗?

    
    Courant Number mean: 0.0217177 max: 0.747933
    Interface Courant Number mean: 0.00207593 max: 0.317466
    deltaT = 0.00246914
    Time = 21.64
    
    PIMPLE: iteration 1
    forces forces:
        Not including porosity effects
    
    Rigid-body motion of the floatingObject_1
        Centre of rotation: (17.9676 1.18487 2.30971)
        Orientation: (0.789224 -0.604364 -0.108945 0.598425 0.796707 -0.0845331 0.137886 0.00152029 0.990447)
        Linear velocity: (1.08494 -0.00258798 -0.0580525)
        Angular velocity: (0.00635102 0.475399 -0.0333477)
    inverseDistance : detected 2 mesh regions
        zone:0 nCells:3543750  voxels:(46 46 46) bb:(27.16 1.15079 0.679996) (30 2.5 3)
        zone:1 nCells:128764  voxels:(46 46 46) bb:(-60 -5.00003 -6.00003) (-30 -2.49997 -2.99997)
    Overset analysis : nCells : 3672514
        calculated   : 3666116
        interpolated : 4240 (interpolated from local:0  mixed local/remote:0  remote:4240)
        hole         : 2158
    
    Velocity BC on patch inlet
    3D_2D Absorption BC on patch outlet
    "Correction Levels" 1( 0.00294933 )
    
    Execution time for mesh.update() = 17.54 s
    alpha.water BC on patch inlet
    smoothSolver:  Solving for alpha.water, Initial residual = 0.000313216, Final residual = 2.15956e-09, No Iterations 2
    Phase-1 volume fraction = 0.674956  Min(alpha.water) = 0  Max(alpha.water) = 1.00807
    MULES: Correcting alpha.water
    alpha.water BC on patch inlet
    MULES: Correcting alpha.water
    alpha.water BC on patch inlet
    Phase-1 volume fraction = 0.674956  Min(alpha.water) = 0  Max(alpha.water) = 1.00807
    Velocity BC on patch inlet
    3D_2D Absorption BC on patch outlet
    "Correction Levels" 1( 0.00294969 )
    
    DILUPBiCGStab:  Solving for p_rgh, Initial residual = 0.000588579, Final residual = 4.92802e-06, No Iterations 13
    time step continuity errors : sum local = 2.70306e-07, global = -1.19385e-07, cumulative = 0.000294726
    DILUPBiCGStab:  Solving for p_rgh, Initial residual = 1.7783e-05, Final residual = 1.71179e-07, No Iterations 33
    Velocity BC on patch inlet
    3D_2D Absorption BC on patch outlet
    "Correction Levels" 1( 0.00294969 )
    
    time step continuity errors : sum local = 8.87724e-09, global = -3.68185e-09, cumulative = 0.000294722
    DILUPBiCGStab:  Solving for p_rgh, Initial residual = 2.68839e-06, Final residual = 9.42479e-10, No Iterations 93
    Velocity BC on patch inlet
    3D_2D Absorption BC on patch outlet
    "Correction Levels" 1( 0.00294969 )
    
    time step continuity errors : sum local = 5.0388e-11, global = -2.36117e-12, cumulative = 0.000294722
    smoothSolver:  Solving for omega, Initial residual = 0.000973407, Final residual = 5.00791e-09, No Iterations 3
    smoothSolver:  Solving for k, Initial residual = 0.000871409, Final residual = 5.24147e-09, No Iterations 3
    ExecutionTime = 142025 s  ClockTime = 141934 s
    

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  • @bestucan 感谢回复!


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