Hi all,
I'm simulating the sediment transport with my solver(interFoam+liggghts). But I did not succeed yet!
The velocity in inlet and outlet of channel in vicinity the particles became very high!
I guess some subjects:
- properties of particles OR different properties of particles before and after insertion!
- I don't know why Solving for p_rgh didn't stop in terminal after timeStepFraction()=1 !?(Please see below)
[
timeStepFraction() = 1
update Ksl.internalField()
smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 5.99123e-05, No Iterations 1
smoothSolver: Solving for Uy, Initial residual = 1, Final residual = 0.0140736, No Iterations 1
smoothSolver: Solving for Uz, Initial residual = 1, Final residual = 0.0123131, No Iterations 2
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 1, Final residual = 0.0084426, No Iterations 6
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 0.00156927, Final residual = 9.0544e-06, No Iterations 6
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 7.90966e-05, Final residual = 2.70149e-07, No Iterations 7
time step continuity errors : sum local = 5.42811e-10, global = 1.00011e-10, cumulative = 1.00011e-10
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 2.63875e-05, Final residual = 1.17216e-07, No Iterations 5
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 1.1953e-06, Final residual = 9.64691e-09, No Iterations 4
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 6.55706e-08, Final residual = 3.72289e-09, No Iterations 1
time step continuity errors : sum local = 7.50865e-12, global = 2.5975e-12, cumulative = 1.02609e-10
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 4.17602e-07, Final residual = 7.54834e-09, No Iterations 3
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 4.16853e-08, Final residual = 3.48123e-09, No Iterations 1
suppressing ddt(voidfraction)
GAMG: Solving for p_rgh, Initial residual = 4.44297e-09, Final residual = 4.44297e-09, No Iterations 0
time step continuity errors : sum local = 8.96096e-12, global = 1.0151e-12, cumulative = 1.03624e-10
smoothSolver: Solving for epsilon, Initial residual = 1.20493e-05, Final residual = 9.51893e-10, No Iterations 1
smoothSolver: Solving for k, Initial residual = 1, Final residual = 5.11388e-05, No Iterations 1
ExecutionTime = 40.24 s ClockTime = 125 s
Starting time loop
Courant Number mean: 1.71469e-05 max: 0.000278115
Interface Courant Number mean: 0 max: 0
Time = 4e-06
MULES: Solving for alpha1
Phase-1 volume fraction = 0.501333 Min(alpha1) = 0 Max(alpha1) = 1
MULES: Solving for alpha1
Phase-1 volume fraction = 0.501333 Min(alpha1) = 0 Max(alpha1) = 1
MULES: Solving for alpha1
Phase-1 volume fraction = 0.501333 Min(alpha1) = -1.10441e-28 Max(alpha1) = 1
Starting up LIGGGHTS
Executing command: 'run 100 pre no post no'
run 100 pre no post no
Step Atoms KinEng 1 Volume
11000102 50000 4.7159825e-11 1.992485e-13 0.0015
CFD Coupling established at step 11000110
CFD Coupling established at step 11000120
CFD Coupling established at step 11000130
CFD Coupling established at step 11000140
CFD Coupling established at step 11000150
CFD Coupling established at step 11000160
CFD Coupling established at step 11000170
CFD Coupling established at step 11000180
CFD Coupling established at step 11000190
CFD Coupling established at step 11000200
11000202 50000 1.9498214e-10 2.7142563e-13 0.0015
Loop time of 13.6989 on 4 procs for 100 steps with 50000 atoms
LIGGGHTS finished
Coupling...
timeStepFraction() = 2
update Ksl.internalField()
smoothSolver: Solving for Ux, Initial residual = 0.270672, Final residual = 2.73495e-05, No Iterations 1
smoothSolver: Solving for Uy, Initial residual = 0.337075, Final residual = 2.41268e-05, No Iterations 1
smoothSolver: Solving for Uz, Initial residual = 0.332952, Final residual = 3.69354e-05, No Iterations 1
smoothSolver: Solving for epsilon, Initial residual = 3.67666e-05, Final residual = 2.0772e-09, No Iterations 1
smoothSolver: Solving for k, Initial residual = 0.522607, Final residual = 3.25428e-05, No Iterations 1
ExecutionTime = 48.34 s ClockTime = 150 s
]
Thanks
Elham