今天发现了一个严重的错误,发现在fluent设置界面改变了时间步长,但是在导入linux集群的.sh文件并没有修改,导致时间步长设置还是之前的设置。不过唯一收获的是,验证了CFD计算具有可复现性,之前 |
您所在的位置:网站首页 › fluent计算出现floating point exception › 今天发现了一个严重的错误,发现在fluent设置界面改变了时间步长,但是在导入linux集群的.sh文件并没有修改,导致时间步长设置还是之前的设置。不过唯一收获的是,验证了CFD计算具有可复现性,之前 |
今天发现了一个严重的错误,发现在fluent设置界面改变了时间步长,但是在导入linux集群的.sh文件并没有修改,导致时间步长设置还是之前的设置。不过唯一收获的是,验证了CFD计算具有可复现性,之前出现的问题,只要设置没有变,还是会出现相同的问题的。 > ;time step /solve/set/time-step 0.00001 > ;number of physical time steps /solve/dual-time-iterate 100000 100 Updating solution at time level N... Global Courant Number [Explicit VOF Criteria] : 0.0184217 done. iter continuity x-velocity y-velocity energy time/iter 10 6.7189e-01 5.2391e-05 1.9787e-04 5.1932e-05 0:00:02 90 20 3.1944e-01 9.6281e-06 4.8672e-05 4.3706e-05 0:00:02 80 30 1.6294e-01 4.2497e-06 2.2487e-05 3.6369e-05 0:00:01 70 40 8.3352e-02 2.0829e-06 1.1146e-05 2.9973e-05 0:00:01 60 50 4.2595e-02 1.0456e-06 5.6436e-06 2.4513e-05 0:00:01 50 60 2.1741e-02 5.2983e-07 2.8776e-06 1.9930e-05 0:00:01 40 70 1.1089e-02 2.6977e-07 1.4708e-06 1.6133e-05 0:00:00 30 80 5.6522e-03 1.3756e-07 7.5213e-07 1.3017e-05 0:00:00 20 90 2.8802e-03 7.0186e-08 3.8446e-07 1.0478e-05 0:00:00 10 100 1.4671e-03 3.5806e-08 1.9641e-07 8.4202e-06 0:00:00 0 step flow-time heat-012 heat-011 heat-010 heat-001 1 1.0000e-05 3.8500e+02 3.8507e+02 4.0406e+02 4.0419e+02 Flow time = 1e-05s, time step = 1 99999 more time steps Updating solution at time level N... Global Courant Number [Explicit VOF Criteria] : 0.053311 done. iter continuity x-velocity y-velocity energy time/iter 100 1.4671e-03 3.5806e-08 1.9641e-07 8.4202e-06 0:00:02 100 110 6.1849e-01 1.6624e-05 3.4816e-05 4.4010e-05 0:00:01 90 120 3.3146e-01 5.0017e-06 2.3879e-05 3.5463e-05 0:00:01 80 130 1.7139e-01 2.8488e-06 1.4212e-05 2.8533e-05 0:00:01 70 140 8.7879e-02 1.5577e-06 8.0021e-06 2.2928e-05 0:00:01 60 150 4.4911e-02 8.2839e-07 4.3340e-06 1.8404e-05 0:00:01 50 160 2.2910e-02 4.3275e-07 2.2948e-06 1.4762e-05 0:00:01 40 170 1.1670e-02 2.2381e-07 1.1985e-06 1.1833e-05 0:00:00 30 180 5.9384e-03 1.1502e-07 6.2051e-07 9.4816e-06 0:00:00 20 190 3.0199e-03 5.8883e-08 3.1942e-07 7.5952e-06 0:00:00 10 200 1.5351e-03 3.0070e-08 1.6372e-07 6.0830e-06 0:00:00 0 step flow-time heat-012 heat-011 heat-010 heat-001 2 2.0000e-05 4.2224e+02 4.2234e+02 4.4524e+02 4.4538e+02 Flow time = 2e-05s, time step = 2 99998 more time steps Updating solution at time level N... Global Courant Number [Explicit VOF Criteria] : 0.0539739 done. iter continuity x-velocity y-velocity energy time/iter 200 1.5351e-03 3.0070e-08 1.6372e-07 6.0830e-06 0:00:01 100 210 9.7476e-03 8.5816e-06 1.3311e-05 3.8053e-05 0:00:01 90 220 1.8951e-03 4.6875e-07 8.2264e-07 2.9686e-05 0:00:01 80 230 7.4389e-04 2.6152e-08 9.6474e-08 2.3327e-05 0:00:01 70 240 3.6066e-04 7.9972e-09 3.6517e-08 1.8427e-05 0:00:01 60 250 1.8136e-04 3.3391e-09 1.7100e-08 1.4612e-05 0:00:01 50 260 9.1794e-05 1.5969e-09 8.4256e-09 1.1618e-05 0:00:01 40 270 4.6543e-05 7.9027e-10 4.2296e-09 9.2565e-06 0:00:00 30 280 2.3610e-05 3.9627e-10 2.1372e-09 7.3852e-06 0:00:00 20 290 1.1977e-05 1.9987e-10 1.0837e-09 5.8983e-06 0:00:00 10 300 6.0755e-06 1.0109e-10 5.5025e-10 4.7142e-06 0:00:00 0 step flow-time heat-012 heat-011 heat-010 heat-001 3 3.0000e-05 4.5140e+02 4.5152e+02 4.7625e+02 4.7639e+02 Flow time = 3e-05s, time step = 3 99997 more time steps |
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