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Old   December 30, 2005, 03:59
Default Dear all, Here, I tried to
  #1
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Guoxiang
Join Date: Mar 2009
Posts: 109
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liugx212 is on a distinguished road
Dear all,

Here, I tried to run the icoFoam case by set some different block and wall with the default example. But I saw some strange message when I run it. So anybody can help me? (especially the "nan")?

Thank you very much.

message as:
Exec : icoFoam . cavity_nu
Date : Dec 29 2005
Time : 12:24:27
Host : liu
PID : 5445
Root : /home/liu/OpenFOAM/liu-1.2/run/tutorials/icoFoam
Case : cavity_nu
Nprocs : 1
Create time

Create mesh for time = 0

Reading field nu

Reading field p

Reading field U

Reading/calculating face flux field phi


Starting time loop

Time = 0.0005

Mean and max Courant Numbers = 0 0.92
BICCG: Solving for Ux, Initial residual = 1, Final residual = 4.19266e-09, No Iterations 1
ICCG: Solving for p, Initial residual = 1, Final residual = 7.70284e-07, No Iterations 125
time step continuity errors : sum local = 3.85141e-09, global = 2.78955e-12, cumulative = 2.78955e-12
ICCG: Solving for p, Initial residual = 7.77916e-05, Final residual = 8.65143e-07, No Iterations 48
time step continuity errors : sum local = 8.02558e-09, global = 3.07845e-11, cumulative = 3.3574e-11
ExecutionTime = 40.69 s


Time = 0.001

Mean and max Courant Numbers = 9.206e-05 0.92
ICCG: Solving for p, Initial residual = 0.532929, Final residual = 8.62283e-07, No Iterations 122
time step continuity errors : sum local = 6.04773e-09, global = 2.37704e-12, cumulative = 3.59511e-11
ICCG: Solving for p, Initial residual = 0.000983102, Final residual = 8.34183e-07, No Iterations 97
time step continuity errors : sum local = 5.56623e-09, global = 8.88229e-12, cumulative = 4.48334e-11
ExecutionTime = 70.8 s


Time = 0.0015

Mean and max Courant Numbers = 8.30813e-05 0.92
ICCG: Solving for p, Initial residual = 0.274277, Final residual = 9.08443e-07, No Iterations 113
time step continuity errors : sum local = 7.75098e-09, global = -4.96195e-12, cumulative = 3.98714e-11
ICCG: Solving for p, Initial residual = 0.00152708, Final residual = 9.76734e-07, No Iterations 92
time step continuity errors : sum local = 1.19559e-08, global = -4.40766e-11, cumulative = -4.20515e-12
ExecutionTime = 99.68 s


Time = 0.002

Mean and max Courant Numbers = 7.65681e-05 0.92
ICCG: Solving for p, Initial residual = 0.133571, Final residual = 9.93934e-07, No Iterations 104
time step continuity errors : sum local = 1.38197e-08, global = -1.40739e-11, cumulative = -1.82791e-11
ICCG: Solving for p, Initial residual = 0.00206827, Final residual = 8.97272e-07, No Iterations 100
time step continuity errors : sum local = 1.47361e-08, global = 2.35944e-10, cumulative = 2.17665e-10
ExecutionTime = 128.16 s


Time = 0.0025

Mean and max Courant Numbers = 0.000142555 0.92
ICCG: Solving for p, Initial residual = 0.0909778, Final residual = 9.85564e-07, No Iterations 103
time step continuity errors : sum local = 1.76297e-08, global = 4.43202e-12, cumulative = 2.22097e-10
ICCG: Solving for p, Initial residual = 0.00284499, Final residual = 9.0875e-07, No Iterations 107
time step continuity errors : sum local = 1.8059e-08, global = -2.44552e-10, cumulative = -2.24546e-11
ExecutionTime = 157.69 s


Time = 0.003

Mean and max Courant Numbers = 0.000218516 0.92
ICCG: Solving for p, Initial residual = 0.0724909, Final residual = 9.1208e-07, No Iterations 106
time step continuity errors : sum local = 1.93639e-08, global = -2.23886e-11, cumulative = -4.48431e-11
ICCG: Solving for p, Initial residual = 0.00436903, Final residual = 9.98486e-07, No Iterations 110
time step continuity errors : sum local = 2.2926e-08, global = -2.88351e-10, cumulative = -3.33194e-10
ExecutionTime = 187.94 s


Time = 0.0035

Mean and max Courant Numbers = 0.000302188 0.92
ICCG: Solving for p, Initial residual = 0.0617661, Final residual = 8.63318e-07, No Iterations 106
time step continuity errors : sum local = 2.08507e-08, global = -3.61446e-11, cumulative = -3.69339e-10
ICCG: Solving for p, Initial residual = 0.00648291, Final residual = 7.96502e-07, No Iterations 113
time step continuity errors : sum local = 2.04635e-08, global = -1.65836e-12, cumulative = -3.70997e-10
ExecutionTime = 218.61 s


Time = 0.004

Mean and max Courant Numbers = 0.000392286 0.94926
ICCG: Solving for p, Initial residual = 0.056025, Final residual = 9.97256e-07, No Iterations 111
time step continuity errors : sum local = 2.67473e-08, global = -4.71886e-11, cumulative = -4.18185e-10
ICCG: Solving for p, Initial residual = 0.00919233, Final residual = 8.93183e-07, No Iterations 114
time step continuity errors : sum local = 2.52406e-08, global = -1.03814e-10, cumulative = -5.21999e-10
ExecutionTime = 249.87 s


Time = 0.0045

Mean and max Courant Numbers = 0.000518264 0.956784
ICCG: Solving for p, Initial residual = 0.0535665, Final residual = 8.53037e-07, No Iterations 114
time step continuity errors : sum local = 2.48831e-08, global = 8.51923e-11, cumulative = -4.36807e-10
ICCG: Solving for p, Initial residual = 0.0105582, Final residual = 8.92687e-07, No Iterations 115
time step continuity errors : sum local = 2.72616e-08, global = -1.07744e-10, cumulative = -5.44551e-10
ExecutionTime = 281.66 s


Time = 0.005

Mean and max Courant Numbers = 0.000762297 1.22303
ICCG: Solving for p, Initial residual = 0.0518001, Final residual = 8.95838e-07, No Iterations 114
time step continuity errors : sum local = 2.81695e-08, global = 7.61893e-11, cumulative = -4.68361e-10
ICCG: Solving for p, Initial residual = 0.013001, Final residual = 8.70653e-07, No Iterations 116
time step continuity errors : sum local = 2.85753e-08, global = 8.39893e-11, cumulative = -3.84372e-10
ExecutionTime = 313.38 s


Time = 0.0055

Mean and max Courant Numbers = 0.00108531 1.42547
ICCG: Solving for p, Initial residual = 0.0566779, Final residual = 9.75777e-07, No Iterations 115
time step continuity errors : sum local = 3.28695e-08, global = 1.61716e-10, cumulative = -2.22657e-10
ICCG: Solving for p, Initial residual = 0.020607, Final residual = 9.98442e-07, No Iterations 116
time step continuity errors : sum local = 3.5058e-08, global = 9.25758e-11, cumulative = -1.30081e-10
ExecutionTime = 345.66 s


Time = 0.006

Mean and max Courant Numbers = 0.00146893 1.4512
ICCG: Solving for p, Initial residual = 0.0665465, Final residual = 8.60932e-07, No Iterations 116
time step continuity errors : sum local = 3.08816e-08, global = 5.93393e-11, cumulative = -7.07414e-11
ICCG: Solving for p, Initial residual = 0.0268022, Final residual = 9.53653e-07, No Iterations 115
time step continuity errors : sum local = 3.57017e-08, global = -5.98839e-11, cumulative = -1.30625e-10
ExecutionTime = 378.12 s


Time = 0.0065

Mean and max Courant Numbers = 0.00197626 1.33144
ICCG: Solving for p, Initial residual = 0.0878394, Final residual = 9.16297e-07, No Iterations 115
time step continuity errors : sum local = 3.51914e-08, global = 1.79437e-10, cumulative = 4.88113e-11
ICCG: Solving for p, Initial residual = 0.0328187, Final residual = 9.90477e-07, No Iterations 81
time step continuity errors : sum local = 4.00977e-08, global = 2.32018e-10, cumulative = 2.80829e-10
ExecutionTime = 406.46 s


Time = 0.007

Mean and max Courant Numbers = 0.00269024 1.65574
ICCG: Solving for p, Initial residual = 0.119433, Final residual = 9.52277e-07, No Iterations 118
time step continuity errors : sum local = 3.96885e-08, global = 2.58568e-10, cumulative = 5.39397e-10
ICCG: Solving for p, Initial residual = 0.0496735, Final residual = 9.95551e-07, No Iterations 119
time step continuity errors : sum local = 4.18401e-08, global = -2.42567e-10, cumulative = 2.9683e-10
ExecutionTime = 439.43 s


Time = 0.0075

Mean and max Courant Numbers = 0.00307952 1.79024
ICCG: Solving for p, Initial residual = 0.107969, Final residual = 9.8169e-07, No Iterations 119
time step continuity errors : sum local = 4.39189e-08, global = 2.41551e-10, cumulative = 5.38381e-10
ICCG: Solving for p, Initial residual = 0.0857869, Final residual = 9.39086e-07, No Iterations 102
time step continuity errors : sum local = 4.18273e-08, global = 6.52387e-11, cumulative = 6.0362e-10
ExecutionTime = 470.56 s


Time = 0.008

Mean and max Courant Numbers = 0.00436275 3.38395
ICCG: Solving for p, Initial residual = 0.18536, Final residual = 9.56177e-07, No Iterations 121
time step continuity errors : sum local = 4.74762e-08, global = 5.2253e-10, cumulative = 1.12615e-09
ICCG: Solving for p, Initial residual = 0.22345, Final residual = 9.79652e-07, No Iterations 118
time step continuity errors : sum local = 5.38037e-08, global = -4.86133e-10, cumulative = 6.40018e-10
ExecutionTime = 503.57 s


Time = 0.0085

Mean and max Courant Numbers = 0.00938964 12.6062
ICCG: Solving for p, Initial residual = 0.533673, Final residual = 9.74575e-07, No Iterations 139
time step continuity errors : sum local = 8.98897e-08, global = 1.3494e-09, cumulative = 1.98942e-09
ICCG: Solving for p, Initial residual = 0.493049, Final residual = 9.34648e-07, No Iterations 138
time step continuity errors : sum local = 3.43542e-07, global = -6.03444e-09, cumulative = -4.04501e-09
ExecutionTime = 540.97 s


Time = 0.009

Mean and max Courant Numbers = 0.172909 197.452
ICCG: Solving for p, Initial residual = 0.981106, Final residual = 8.97684e-07, No Iterations 138
time step continuity errors : sum local = 1.14836e-05, global = 2.58977e-07, cumulative = 2.54932e-07
ICCG: Solving for p, Initial residual = 0.944272, Final residual = 9.85265e-07, No Iterations 138
time step continuity errors : sum local = 0.000392127, global = -9.60225e-06, cumulative = -9.34731e-06
ExecutionTime = 578.42 s


Time = 0.0095

Mean and max Courant Numbers = 257.545 400394
ICCG: Solving for p, Initial residual = 0.999997, Final residual = 9.56969e-07, No Iterations 150
time step continuity errors : sum local = 70.4322, global = -0.457655, cumulative = -0.457664
ICCG: Solving for p, Initial residual = 0.999997, Final residual = 8.11788e-07, No Iterations 144
time step continuity errors : sum local = 1.15845e+07, global = -152185, cumulative = -152185
ExecutionTime = 617.78 s


Time = 0.01

Mean and max Courant Numbers = 6.36749e+12 1.48312e+16
ICCG: Solving for p, Initial residual = 1, Final residual = 2.24066, No Iterations 5001
time step continuity errors : sum local = 1.98651e+23, global = 1.33832e+18, cumulative = 1.33832e+18
ICCG: Solving for p, Initial residual = 1, Final residual = 20.1767, No Iterations 5001
time step continuity errors : sum local = 3.44205e+33, global = -3.28773e+27, cumulative = -3.28773e+27
ExecutionTime = 1735.05 s


Time = 0.0105

Mean and max Courant Numbers = 2.82878e+33 1.54814e+37
ICCG: Solving for p, Initial residual = 1, Final residual = 1641.81, No Iterations 5001
time step continuity errors : sum local = 2.05274e+40, global = -5.65532e+34, cumulative = -5.65532e+34
ICCG: Solving for p, Initial residual = 0.000194636, Final residual = 2.28396, No Iterations 5001
time step continuity errors : sum local = 7.88062e+45, global = -1.45249e+42, cumulative = -1.45249e+42
ExecutionTime = 2865.59 s


Time = 0.011

Mean and max Courant Numbers = 6.20707e+45 1.23315e+50
BICCG: Solving for Ux, Initial residual = 0.974883, Final residual = 87.4909, No Iterations 1001
BICCG: Solving for Uy, Initial residual = 0.910636, Final residual = 0.915621, No Iterations 1001
BICCG: Solving for Uz, Initial residual = 0.829574, Final residual = 0.829772, No Iterations 1001
ICCG: Solving for p, Initial residual = 1, Final residual = 120.812, No Iterations 5001
time step continuity errors : sum local = 4.2199e+57, global = 5.62346e+53, cumulative = 5.62346e+53
ICCG: Solving for p, Initial residual = 0.974889, Final residual = 41.6035, No Iterations 5001
time step continuity errors : sum local = 1.07461e+61, global = 6.42855e+57, cumulative = 6.42912e+57
ExecutionTime = 4904.79 s


Time = 0.0115

Mean and max Courant Numbers = 8.47534e+60 9.2728e+64
BICCG: Solving for Ux, Initial residual = 0.999957, Final residual = 1.00236, No Iterations 1001
BICCG: Solving for Uy, Initial residual = 0.999979, Final residual = 1.61928, No Iterations 1001
BICCG: Solving for Uz, Initial residual = 0.999937, Final residual = 1.01002, No Iterations 1001
ICCG: Solving for p, Initial residual = 1, Final residual = 34.8251, No Iterations 5001
time step continuity errors : sum local = 1.44208e+68, global = -8.09518e+63, cumulative = -8.09518e+63
ICCG: Solving for p, Initial residual = 0.676704, Final residual = 6.75887, No Iterations 5001
time step continuity errors : sum local = 2.28907e+71, global = -6.17318e+66, cumulative = -6.18128e+66
ExecutionTime = 6947.87 s


Time = 0.012

Mean and max Courant Numbers = 1.75251e+71 3.21056e+75
BICCG: Solving for Ux, Initial residual = 0.99995, Final residual = 14.4124, No Iterations 1001
BICCG: Solving for Uy, Initial residual = 0.999987, Final residual = 1.00019, No Iterations 1001
BICCG: Solving for Uz, Initial residual = 0.999995, Final residual = 8.3139, No Iterations 1001
ICCG: Solving for p, Initial residual = 1, Final residual = 983.029, No Iterations 5001
time step continuity errors : sum local = 1.72675e+82, global = 8.55375e+79, cumulative = 8.55375e+79
ICCG: Solving for p, Initial residual = 0.971493, Final residual = 476.704, No Iterations 5001
time step continuity errors : sum local = 7.31244e+86, global = 2.3521e+83, cumulative = 2.35296e+83
ExecutionTime = 8985.8 s


Time = 0.0125

Mean and max Courant Numbers = 6.34151e+86 1.16279e+91
BICCG: Solving for Ux, Initial residual = 0.999929, Final residual = 0.999929, No Iterations 1001
BICCG: Solving for Uy, Initial residual = 0.999979, Final residual = 0.999979, No Iterations 1001
BICCG: Solving for Uz, Initial residual = 0.999989, Final residual = 0.999989, No Iterations 1001
ICCG: Solving for p, Initial residual = 1, Final residual = 2561.44, No Iterations 5001
time step continuity errors : sum local = 4.65208e+93, global = -2.2301e+89, cumulative = -2.2301e+89
ICCG: Solving for p, Initial residual = 0.23393, Final residual = 31.0314, No Iterations 5001
time step continuity errors : sum local = 4.17777e+97, global = -6.10628e+93, cumulative = -6.1065e+93
ExecutionTime = 11024.1 s


Time = 0.013

Mean and max Courant Numbers = 3.2115e+97 1.42409e+102
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 5.91012e+100, global = -4.34667e+98, cumulative = -4.34673e+98
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.32585e+103, global = -2.42172e+100, cumulative = -2.46519e+100
ExecutionTime = 11050.5 s


Time = 0.0135

Mean and max Courant Numbers = 4.40402e+102 2.27099e+107
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.07773e+105, global = -6.32456e+101, cumulative = -6.57107e+101
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 2.2921e+106, global = 2.09218e+102, cumulative = 1.43507e+102
ExecutionTime = 11076.9 s


Time = 0.014

Mean and max Courant Numbers = 8.07859e+105 7.97372e+110
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 2.67323e+107, global = -1.50222e+103, cumulative = -1.35871e+103
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 6.46538e+108, global = 7.82788e+103, cumulative = 6.46917e+103
ExecutionTime = 11103.2 s


Time = 0.0145

Mean and max Courant Numbers = 2.82932e+108 1.28034e+113
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 4.59533e+109, global = 1.57339e+107, cumulative = 1.57404e+107
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 2.76356e+112, global = 2.01057e+107, cumulative = 3.5846e+107
ExecutionTime = 11129.7 s


Time = 0.015

Mean and max Courant Numbers = 1.29641e+112 1.37595e+117
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 2.3866e+113, global = -7.29266e+108, cumulative = -6.9342e+108
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.03505e+117, global = 4.29708e+109, cumulative = 3.60366e+109
ExecutionTime = 11156.1 s


Time = 0.0155

Mean and max Courant Numbers = 4.07057e+116 4.80308e+121
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 7.28929e+117, global = -4.83362e+112, cumulative = -4.83001e+112
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 5.34392e+120, global = 3.64103e+112, cumulative = -1.18898e+112
ExecutionTime = 11182.5 s


Time = 0.016

Mean and max Courant Numbers = 2.50969e+120 2.10875e+125
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 3.70685e+121, global = -5.24002e+115, cumulative = -5.24121e+115
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 7.40905e+124, global = 3.22655e+117, cumulative = 3.17414e+117
ExecutionTime = 11208.8 s


Time = 0.0165

Mean and max Courant Numbers = 3.20916e+124 3.03689e+129
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 5.53723e+125, global = -5.84876e+119, cumulative = -5.81702e+119
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.91706e+129, global = 5.59198e+121, cumulative = 5.53381e+121
ExecutionTime = 11235.2 s


Time = 0.017

Mean and max Courant Numbers = 7.21336e+128 1.37116e+134
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.40417e+130, global = -1.70218e+124, cumulative = -1.69664e+124
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.6804e+135, global = 1.17533e+125, cumulative = 1.00567e+125
ExecutionTime = 11261.5 s


Time = 0.0175

Mean and max Courant Numbers = 6.93742e+134 1.24497e+140
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.88834e+136, global = -3.47158e+127, cumulative = -3.46152e+127
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 1.86505e+142, global = -4.73835e+129, cumulative = -4.77297e+129
ExecutionTime = 11287.9 s


Time = 0.018

Mean and max Courant Numbers = 6.60202e+141 1.24774e+147
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 9.19055e+142, global = -2.95232e+131, cumulative = -3.00005e+131
ICCG: Solving for p: solution singularity
time step continuity errors : sum local = 9.61981e+148, global = -6.03847e+133, cumulative = -6.06847e+133
ExecutionTime = 11314.2 s


Time = 0.0185

Mean and max Courant Numbers = 3.39544e+148 4.24796e+153
BICCG: Solving for Ux: solution singularity
BICCG: Solving for Uy: solution singularity
BICCG: Solving for Uz: solution singularity
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11336.3 s


Time = 0.019

Mean and max Courant Numbers = nan 3.37293e+156
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11352.4 s


Time = 0.0195

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11368.6 s


Time = 0.02

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11385.5 s


Time = 0.0205

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11404.1 s


Time = 0.021

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11427.6 s


Time = 0.0215

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11461.6 s


Time = 0.022

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11515.3 s


Time = 0.0225

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11596.1 s


Time = 0.023

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11702.6 s


Time = 0.0235

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11824.7 s


Time = 0.024

Mean and max Courant Numbers = nan inf
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 11952 s


Time = 0.0245

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 12081.1 s


Time = 0.025

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 12259.4 s


Time = 0.0255

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 12448 s


Time = 0.026

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 12630.1 s


Time = 0.0265

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 12824 s


Time = 0.027

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 13029 s


Time = 0.0275

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 13236.8 s


Time = 0.028

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 13443.4 s


Time = 0.0285

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 13649.7 s


Time = 0.029

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 13856.3 s


Time = 0.0295

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 14062.6 s


Time = 0.03

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 14270.2 s


Time = 0.0305

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 14478.9 s


Time = 0.031

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 14685.5 s


Time = 0.0315

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 14895.1 s


Time = 0.032

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 15103.4 s


Time = 0.0325

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 15309.7 s


Time = 0.033

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 15516 s


Time = 0.0335

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 15722.4 s


Time = 0.034

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 15928.4 s


Time = 0.0345

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 16134.4 s


Time = 0.035

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 16341.1 s


Time = 0.0355

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 16550.5 s


Time = 0.036

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 16758.1 s


Time = 0.0365

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 16964.3 s


Time = 0.037

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 17172.4 s


Time = 0.0375

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 17378.7 s


Time = 0.038

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 17585 s


Time = 0.0385

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 17791.4 s


Time = 0.039

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 17998 s


Time = 0.0395

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 18205.1 s


Time = 0.04

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 18412 s


Time = 0.0405

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 18620 s


Time = 0.041

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 18826 s


Time = 0.0415

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 19032.6 s


Time = 0.042

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 19241.8 s


Time = 0.0425

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 19451.6 s


Time = 0.043

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 19659.9 s


Time = 0.0435

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 19867.9 s


Time = 0.044

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 20076.4 s


Time = 0.0445

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 20284.6 s


Time = 0.045

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 20494 s


Time = 0.0455

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 20702.1 s


Time = 0.046

Mean and max Courant Numbers = nan nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
time step continuity errors : sum local = nan, global = nan, cumulative = nan
ExecutionTime = 20912.5 s
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Old   January 4, 2006, 04:00
Default Hi. There are many things tha
  #2
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Charles Ju
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Hi.
There are many things that can go wrong.
You have to play with it until you get it.

Try reducing time step. You have 0.0005 which may be too large. try 0.0001 or 0.0000001 or anywhere in between.

Is the value of nu correct in transportProperties?

If the run still diverges, something is wrong with your boundary conditions.

Hope this helps.
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Old   January 4, 2006, 05:46
Default Dear Guoxiang, your solutio
  #3
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VVqf
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Dear Guoxiang,

your solution does not converge.
nan = not a number (too huge number)

take Charles's suggestions.
first check your transportProperties and boundary conditions.

PS:
pls. make your title clear and specific so as to get better help. it does good to both you and the others.
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Old   January 4, 2006, 19:07
Default Dear friends, Thanks for yo
  #4
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Guoxiang
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Dear friends,

Thanks for your help. You are right. I have tried to reduce the time step though it is too slow to compute.

Here, I tried nu as the field in createFields file. And I also set the air as 1.45e-5 and building as 1.45e+50. But it is still problem as above. So could you please give more details.

Thanks deeply.
Xiang
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