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[waves2Foam] timestep continuity error

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Old   January 25, 2015, 09:32
Default timestep continuity error
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Xiantao Zhang
Join Date: Nov 2014
Posts: 31
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zhxter is on a distinguished road
Hi, foamers,

when I tried to run the tutorial "waveFlume" of waves2Foam, I got the following errors:
Code:
MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798403  Min(alpha1) = 0  Max(alpha1) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798409  Min(alpha1) = 0  Max(alpha1) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798416  Min(alpha1) = 0  Max(alpha1) = 1
Relaxing time: 0.04 s
GAMG:  Solving for p_rgh, Initial residual = 0.00133083, Final residual = 1.50636e-06, No Iterations 1
time step continuity errors : sum local = 4.43115e-05, global = 1.10247e-05, cumulative = 0.048599
GAMGPCG:  Solving for p_rgh, Initial residual = 1.84558e-06, Final residual = 1.74706e-09, No Iterations 3
time step continuity errors : sum local = 5.14495e-08, global = 5.65246e-10, cumulative = 0.048599
ExecutionTime = 376.98 s  ClockTime = 379 s

Courant Number mean: 0.0167927 max: 0.241044
Interface Courant Number mean: 0.00168598 max: 0.220529
deltaT = 0.00463517
Time = 19.9954

MULES: Solving for alpha.water
Phase-1 volume fraction = 0.79842  Min(alpha1) = 0  Max(alpha1) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798426  Min(alpha1) = 0  Max(alpha1) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798432  Min(alpha1) = 0  Max(alpha1) = 1
Relaxing time: 0.04 s
GAMG:  Solving for p_rgh, Initial residual = 0.0012809, Final residual = 1.65695e-06, No Iterations 1
time step continuity errors : sum local = 4.86779e-05, global = 1.06742e-05, cumulative = 0.0486097
GAMGPCG:  Solving for p_rgh, Initial residual = 1.915e-06, Final residual = 1.62638e-09, No Iterations 3
time step continuity errors : sum local = 4.78319e-08, global = -1.11122e-10, cumulative = 0.0486097
ExecutionTime = 377.08 s  ClockTime = 379 s

Courant Number mean: 0.0168036 max: 0.242762
Interface Courant Number mean: 0.00173869 max: 0.220547
deltaT = 0.00463517
Time = 20

MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798435  Min(alpha1) = 0  Max(alpha1) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798441  Min(alpha1) = 0  Max(alpha1) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 0.798447  Min(alpha1) = 0  Max(alpha1) = 1
Relaxing time: 0.04 s
GAMG:  Solving for p_rgh, Initial residual = 0.0012169, Final residual = 1.72524e-06, No Iterations 1
time step continuity errors : sum local = 5.06634e-05, global = 1.07902e-05, cumulative = 0.0486205
GAMGPCG:  Solving for p_rgh, Initial residual = 2.06762e-06, Final residual = 1.0731e-09, No Iterations 3
time step continuity errors : sum local = 3.15412e-08, global = -6.03374e-10, cumulative = 0.0486205
ExecutionTime = 377.19 s  ClockTime = 379 s
So could anyone help me with the problem??

Thanks
xiantao

Last edited by wyldckat; January 25, 2015 at 11:25. Reason: Added [CODE][/CODE]
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