error, courant number goes up
Hello there, i have a terrible problem, it results that when i run a simulation with the app buoyantBoussinesq in my personal cumputer with 16 cores in openfoam 3.1 it goes well, but when i try to run the same app in a cluster in openfoam 3.2 the courant number goes up and the first iterations en it crashes, and i do not why it is happening :confused:, is the precompiled app in both versions, and i have tryed run a diferrent solver (a custom one) in the cluster with foam 3.2 and runs well as in my personal pc in foam 3.1, could someone help me plz ty
Code:
Time = 5400.0300000000007
Courant Number mean: 26.5121 max: 1666.96 velocity magnitude: 2966.55
DILUPBiCG: Solving for Ux, Initial residual = 0.911188, Final residual = 7.42636e-06, No Iterations 62
DILUPBiCG: Solving for Uy, Initial residual = 0.919441, Final residual = 9.4579e-06, No Iterations 55
DILUPBiCG: Solving for Uz, Initial residual = 0.941604, Final residual = 2.72516e+09, No Iterations 1000
DILUPBiCG: Solving for T, Initial residual = 0.998317, Final residual = 4.1805e-06, No Iterations 60
DICPCG: Solving for p, Initial residual = 1, Final residual = 0.0950819, No Iterations 9
time step continuity errors : sum local = 1.64311e+10, global = -662.716, cumulative = -662.716
DICPCG: Solving for p, Initial residual = 0.675918, Final residual = 9.89838e-08, No Iterations 240
time step continuity errors : sum local = 37805.4, global = -1002.59, cumulative = -1665.3
DILUPBiCG: Solving for epsilon, Initial residual = 1, Final residual = 9.35798e-06, No Iterations 84
DILUPBiCG: Solving for k, Initial residual = 1, Final residual = 1.12121e-06, No Iterations 15
bounding k, min: -3.27486e+06 max: 5.86224e+17 average: 5.59259e+13
ExecutionTime = 4.21 s ClockTime = 6 s
Time = 5400.0350000000008
Courant Number mean: 2.457e+11 max: 4.17318e+15 velocity magnitude: 2.10058e+16
DILUPBiCG: Solving for Ux, Initial residual = 1, Final residual = 6.92186e-06, No Iterations 357
DILUPBiCG: Solving for Uy, Initial residual = 1, Final residual = 0.00108087, No Iterations 1000
DILUPBiCG: Solving for Uz, Initial residual = 1, Final residual = 4.36233e-06, No Iterations 397
DILUPBiCG: Solving for T, Initial residual = 1, Final residual = 0.0356456, No Iterations 1000
DICPCG: Solving for p, Initial residual = 1, Final residual = 0.0991199, No Iterations 137
time step continuity errors : sum local = 1.13764e+12, global = -4.05105e+06, cumulative = -4.05271e+06
DICPCG: Solving for p, Initial residual = 0.803679, Final residual = 46.9312, No Iterations 1000
time step continuity errors : sum local = 1.96568e+15, global = -1.13509e+08, cumulative = -1.17562e+08
DILUPBiCG: Solving for epsilon, Initial residual = 0.992903, Final residual = 1.99109e-06, No Iterations 20
bounding epsilon, min: -3.30441e+15 max: 7.96184e+26 average: 1.1842e+25
DILUPBiCG: Solving for k, Initial residual = 0.999995, Final residual = 3.99017e-06, No Iterations 13
bounding k, min: -1.24997e+14 max: 6.30641e+22 average: 1.19204e+20
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