# Could anybody help me see this error and give help

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 December 30, 2005, 03:59 Dear all, Here, I tried to #1 Senior Member   Guoxiang Join Date: Mar 2009 Posts: 109 Rep Power: 9 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

 January 4, 2006, 04:00 Hi. There are many things tha #2 New Member   Charles Ju Join Date: Mar 2009 Posts: 15 Rep Power: 9 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.

 January 4, 2006, 05:46 Dear Guoxiang, your solutio #3 Member   VVqf Join Date: Mar 2009 Location: Braunschweig Posts: 66 Rep Power: 9 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.

 January 4, 2006, 19:07 Dear friends, Thanks for yo #4 Senior Member   Guoxiang Join Date: Mar 2009 Posts: 109 Rep Power: 9 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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