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April 14, 2017, 09:47 |
chtMultiRegionSimpleFoam turbulent case
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#1 |
New Member
Aditya Patil
Join Date: Jan 2017
Posts: 9
Rep Power: 9 |
Dear All,
Kindly find attached the case and let me know if someone can help me out with this. Its a Shell and tube heat exchanger, i am using RNGkepsilon model. I have generated mesh in icem and imported it in OpenFOAM (which took two months for me to figure it out how to import internal walls). Now when i run the solver, i get the following error. My Master's Thesis depends on this. It would be great help if someone can help me out with this. apatil996@gmail.com |
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April 14, 2017, 13:35 |
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#2 |
Senior Member
Join Date: Sep 2013
Posts: 353
Rep Power: 21 |
There is no case attached?
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April 14, 2017, 17:14 |
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#3 |
New Member
Aditya Patil
Join Date: Jan 2017
Posts: 9
Rep Power: 9 |
I am not able to upload the file if you can share your mail id i can share the files with you
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April 14, 2017, 17:26 |
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#4 |
New Member
Aditya Patil
Join Date: Jan 2017
Posts: 9
Rep Power: 9 |
Solving for fluid region water
smoothSolver: Solving for Ux, Initial residual = 0.9790392, Final residual = 0.005736963, No Iterations 5 smoothSolver: Solving for Uy, Initial residual = 0.9308278, Final residual = 0.005755914, No Iterations 4 smoothSolver: Solving for Uz, Initial residual = 0.9411201, Final residual = 0.005565112, No Iterations 4 smoothSolver: Solving for h, Initial residual = 0.5149063, Final residual = 5.30946e-006, No Iterations 1 Min/max T:300 330 GAMG: Solving for p_rgh, Initial residual = 0.05148115, Final residual = 0.0004485215, No Iterations 7 GAMG: Solving for p_rgh, Initial residual = 0.1919115, Final residual = 0.001488724, No Iterations 2 GAMG: Solving for p_rgh, Initial residual = 0.019925, Final residual = 0.0001984095, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.00315037, Final residual = 2.630818e-005, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.0005758737, Final residual = 4.178398e-006, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.0001134084, Final residual = 8.907421e-007, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 2.646995e-005, Final residual = 1.930104e-007, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 6.741278e-006, Final residual = 6.422404e-008, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 1.953217e-006, Final residual = 3.998076e-008, No Iterations 2 GAMG: Solving for p_rgh, Initial residual = 5.720107e-007, Final residual = 4.862596e-008, No Iterations 1 GAMG: Solving for p_rgh, Initial residual = 1.797649e-007, Final residual = 1.529353e-008, No Iterations 1 time step continuity errors : sum local = 0.7081896, global = -0.004061983, cumulative = -0.004190197 Min/max rho:998.2 998.2 DILUPBiCG: Solving for epsilon, Initial residual = 0.966629, Final residual = 0.005164755, No Iterations 6 DILUPBiCG: Solving for k, Initial residual = 0.9137956, Final residual = 0.003374522, No Iterations 3 bounding k, min: -0.003801141 max: 3.597947 average: 0.1961555 Solving for solid region solid DICPCG: Solving for h, Initial residual = 0.9999976, Final residual = 1.355595e-005, No Iterations 4 DICPCG: Solving for h, Initial residual = 0.1632307, Final residual = 3.701048e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.07990981, Final residual = 1.714419e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.05253247, Final residual = 1.017037e-005, No Iterations 3 Min/max T:300 300.0007 ExecutionTime = 77.766 s ClockTime = 78 s Time = 3 Solving for fluid region gas smoothSolver: Solving for Ux, Initial residual = 0.4012478, Final residual = 0.002204488, No Iterations 4 smoothSolver: Solving for Uy, Initial residual = 0.4779169, Final residual = 0.00178186, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.4704772, Final residual = 0.001735573, No Iterations 3 smoothSolver: Solving for h, Initial residual = 0.07085427, Final residual = 0.0001470701, No Iterations 1 Min/max T:300 450 GAMG: Solving for p_rgh, Initial residual = 0.4096719, Final residual = 0.002440951, No Iterations 7 GAMG: Solving for p_rgh, Initial residual = 0.1968471, Final residual = 0.000888509, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.01984266, Final residual = 0.0001255817, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.00363527, Final residual = 1.506567e-005, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.0006360669, Final residual = 5.624142e-006, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.0001621235, Final residual = 1.24138e-006, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 6.003564e-005, Final residual = 3.667581e-007, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 2.887354e-005, Final residual = 2.00293e-007, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 1.847279e-005, Final residual = 1.114627e-007, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 1.462804e-005, Final residual = 9.228124e-008, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 1.281861e-005, Final residual = 8.007105e-008, No Iterations 4 time step continuity errors : sum local = 0.0005627474, global = -5.62112e-006, cumulative = -0.004195818 Min/max rho:0.55 0.55 DILUPBiCG: Solving for epsilon, Initial residual = 0.2496675, Final residual = 0.002029951, No Iterations 14 DILUPBiCG: Solving for k, Initial residual = 0.694531, Final residual = 0.006792958, No Iterations 58 Solving for fluid region water smoothSolver: Solving for Ux, Initial residual = 0.328951, Final residual = 0.001382712, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.6077026, Final residual = 0.002674739, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.5900856, Final residual = 0.00245067, No Iterations 3 smoothSolver: Solving for h, Initial residual = 0.2817345, Final residual = 9.76883e-006, No Iterations 1 Min/max T:300 330 GAMG: Solving for p_rgh, Initial residual = 0.8069214, Final residual = 0.003880355, No Iterations 10 GAMG: Solving for p_rgh, Initial residual = 0.2790827, Final residual = 0.00278334, No Iterations 2 GAMG: Solving for p_rgh, Initial residual = 0.02385825, Final residual = 0.000143512, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.003995125, Final residual = 2.444764e-005, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.0008686896, Final residual = 6.135138e-006, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.0001456225, Final residual = 1.005563e-006, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 4.349722e-005, Final residual = 2.500999e-007, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 9.529139e-006, Final residual = 5.844189e-008, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 2.743393e-006, Final residual = 8.732328e-008, No Iterations 2 GAMG: Solving for p_rgh, Initial residual = 7.584416e-007, Final residual = 6.50084e-008, No Iterations 1 GAMG: Solving for p_rgh, Initial residual = 2.198307e-007, Final residual = 2.503013e-008, No Iterations 1 time step continuity errors : sum local = 0.6008994, global = 0.001049441, cumulative = -0.003146376 Min/max rho:998.2 998.2 DILUPBiCG: Solving for epsilon, Initial residual = 0.6036671, Final residual = 0.001586308, No Iterations 2 bounding epsilon, min: -1639.298 max: 123706.8 average: 220.2834 DILUPBiCG: Solving for k, Initial residual = 0.5545638, Final residual = 0.003996428, No Iterations 25 bounding k, min: -0.2369039 max: 96.80032 average: 0.5651651 Solving for solid region solid DICPCG: Solving for h, Initial residual = 0.3641707, Final residual = 7.723615e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.132716, Final residual = 2.676192e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.07120789, Final residual = 1.422047e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.04786442, Final residual = 8.93938e-006, No Iterations 3 Min/max T:300 300.0108 ExecutionTime = 100.723 s ClockTime = 101 s Time = 4 Solving for fluid region gas smoothSolver: Solving for Ux, Initial residual = 0.997895, Final residual = 0.005140062, No Iterations 5 smoothSolver: Solving for Uy, Initial residual = 0.9951449, Final residual = 0.003863077, No Iterations 5 smoothSolver: Solving for Uz, Initial residual = 0.9957609, Final residual = 0.004041113, No Iterations 5 smoothSolver: Solving for h, Initial residual = 0.9998887, Final residual = 0.00215796, No Iterations 1 Min/max T:300 450 GAMG: Solving for p_rgh, Initial residual = 0.1707758, Final residual = 0.000691169, No Iterations 8 GAMG: Solving for p_rgh, Initial residual = 0.2205068, Final residual = 0.0007038493, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.02429237, Final residual = 0.0001814, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.00381364, Final residual = 2.121552e-005, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.0008595016, Final residual = 7.324344e-006, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.0001714744, Final residual = 9.041996e-007, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 5.990239e-005, Final residual = 3.708448e-007, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 1.419537e-005, Final residual = 1.132744e-007, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 5.840415e-006, Final residual = 5.827181e-008, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 2.05174e-006, Final residual = 6.060779e-008, No Iterations 2 GAMG: Solving for p_rgh, Initial residual = 9.098214e-007, Final residual = 2.987628e-008, No Iterations 2 time step continuity errors : sum local = 0.142911, global = 0.01224158, cumulative = 0.009095205 Min/max rho:0.55 0.55 DILUPBiCG: Solving for epsilon, Initial residual = 0.963659, Final residual = 0.009422052, No Iterations 11 bounding epsilon, min: -4.29482e+007 max: 6.201085e+014 average: 3.407446e+012 DILUPBiCG: Solving for k, Initial residual = 0.8746861, Final residual = 0.001735249, No Iterations 1 bounding k, min: -130.283 max: 1357584 average: 13843.08 Solving for fluid region water smoothSolver: Solving for Ux, Initial residual = 0.4258334, Final residual = 0.002836647, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.5487691, Final residual = 0.003929843, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.5808286, Final residual = 0.003483625, No Iterations 3 smoothSolver: Solving for h, Initial residual = 0.003828602, Final residual = 1.012619e-005, No Iterations 1 Min/max T:300 330 GAMG: Solving for p_rgh, Initial residual = 0.841575, Final residual = 0.006002557, No Iterations 10 GAMG: Solving for p_rgh, Initial residual = 0.9909519, Final residual = 0.008380402, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.1576031, Final residual = 0.001345169, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.02590365, Final residual = 0.0001482172, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.00611356, Final residual = 3.423935e-005, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.001096689, Final residual = 5.206981e-006, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.0002935457, Final residual = 1.731125e-006, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 6.052588e-005, Final residual = 2.527115e-007, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 1.618924e-005, Final residual = 1.075399e-007, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 3.839643e-006, Final residual = 7.358797e-008, No Iterations 2 GAMG: Solving for p_rgh, Initial residual = 1.003823e-006, Final residual = 7.899073e-008, No Iterations 1 time step continuity errors : sum local = 4.670205e+010, global = 3.188148e+008, cumulative = 3.188148e+008 Min/max rho:998.2 998.2 DILUPBiCG: Solving for epsilon, Initial residual = 1, Final residual = 4.047027, No Iterations 101 bounding epsilon, min: -7.46515e+017 max: 4.762213e+017 average: 3.265049e+015 DILUPBiCG: Solving for k, Initial residual = 1, Final residual = 0.007218006, No Iterations 47 bounding k, min: -5.993124e+013 max: 2.393794e+020 average: 3.747147e+015 Solving for solid region solid DICPCG: Solving for h, Initial residual = 0.9855608, Final residual = 2.461337e-005, No Iterations 4 DICPCG: Solving for h, Initial residual = 0.153145, Final residual = 5.186669e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.08033832, Final residual = 2.406222e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.05559123, Final residual = 1.43891e-005, No Iterations 3 Min/max T:300 306.5061 ExecutionTime = 124.02 s ClockTime = 124 s Time = 5 Solving for fluid region gas smoothSolver: Solving for Ux, Initial residual = 0.2762095, Final residual = 0.001942218, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.5057565, Final residual = 0.002582315, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.5033928, Final residual = 0.002791919, No Iterations 3 smoothSolver: Solving for h, Initial residual = 0.9881829, Final residual = 0.002039114, No Iterations 1 Min/max T:300 450 GAMG: Solving for p_rgh, Initial residual = 0.9601526, Final residual = 0.008333369, No Iterations 8 GAMG: Solving for p_rgh, Initial residual = 0.2487248, Final residual = 0.0009569042, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.0236621, Final residual = 0.0002168057, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.0045142, Final residual = 2.598943e-005, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.001340493, Final residual = 1.241336e-005, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.0002866616, Final residual = 2.806589e-006, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 9.378252e-005, Final residual = 8.509813e-007, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 3.749074e-005, Final residual = 2.650459e-007, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 1.567895e-005, Final residual = 1.513883e-007, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 9.221193e-006, Final residual = 9.212312e-008, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 5.732154e-006, Final residual = 5.995503e-008, No Iterations 4 time step continuity errors : sum local = 0.2473274, global = 0.004257796, cumulative = 3.188148e+008 Min/max rho:0.55 0.55 DILUPBiCG: Solving for epsilon, Initial residual = 0.9998053, Final residual = 1.254621e-007, No Iterations 1 bounding epsilon, min: -1.120723e+013 max: 1.542508e+013 average: 1.128546e+010 DILUPBiCG: Solving for k, Initial residual = 0.6029677, Final residual = 0.004540687, No Iterations 26 bounding k, min: -30040.46 max: 3361104 average: 47591.83 Solving for fluid region water smoothSolver: Solving for Ux, Initial residual = 0.6442359, Final residual = 0.006100699, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.6184839, Final residual = 0.006119722, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.696461, Final residual = 0.006920729, No Iterations 3 smoothSolver: Solving for h, Initial residual = 0.002719333, Final residual = 9.114461e-006, No Iterations 1 Min/max T:300 450 GAMG: Solving for p_rgh, Initial residual = 0.9199075, Final residual = 0.2172644, No Iterations 1000 GAMG: Solving for p_rgh, Initial residual = 0.9384384, Final residual = 4.203924, No Iterations 1000 GAMG: Solving for p_rgh, Initial residual = 0.9999959, Final residual = 0.00531034, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.4049094, Final residual = 0.003023114, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.138636, Final residual = 0.001346446, No Iterations 2 GAMG: Solving for p_rgh, Initial residual = 0.04641499, Final residual = 0.0003863779, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.01776378, Final residual = 0.0001020957, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.004052399, Final residual = 2.448172e-005, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.002342693, Final residual = 2.173853e-005, No Iterations 3 GAMG: Solving for p_rgh, Initial residual = 0.0008084469, Final residual = 5.883629e-006, No Iterations 14 GAMG: Solving for p_rgh, Initial residual = 0.0006418857, Final residual = 4.189607e-006, No Iterations 10 time step continuity errors : sum local = 1.712006e+042, global = 6.981974e+036, cumulative = 6.981974e+036 Min/max rho:998.2 998.2 DILUPBiCG: Solving for epsilon, Initial residual = 1, Final residual = 51.83246, No Iterations 101 bounding epsilon, min: -6.045852e+061 max: 1.02814e+062 average: 4.12244e+058 DILUPBiCG: Solving for k, Initial residual = 0.9817559, Final residual = 0.008315693, No Iterations 8 bounding k, min: -1.657296e+059 max: 3.275837e+067 average: 5.043551e+062 Solving for solid region solid DICPCG: Solving for h, Initial residual = 0.9603932, Final residual = 5.594731e-006, No Iterations 4 DICPCG: Solving for h, Initial residual = 0.1651377, Final residual = 2.231357e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.07915659, Final residual = 1.065266e-005, No Iterations 3 DICPCG: Solving for h, Initial residual = 0.04969039, Final residual = 6.360309e-006, No Iterations 3 Min/max T:300 450 ExecutionTime = 180.901 s ClockTime = 181 s Time = 6 Solving for fluid region gas smoothSolver: Solving for Ux, Initial residual = 0.6578743, Final residual = 0.002162361, No Iterations 2 smoothSolver: Solving for Uy, Initial residual = 0.5158366, Final residual = 0.00193017, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.5809276, Final residual = 0.003274813, No Iterations 3 smoothSolver: Solving for h, Initial residual = 0.05025332, Final residual = 0.0001729062, No Iterations 1 Min/max T:300 450 GAMG: Solving for p_rgh, Initial residual = 0.815518, Final residual = 0.004156763, No Iterations 12 GAMG: Solving for p_rgh, Initial residual = 0.5630934, Final residual = 0.002945261, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.1379688, Final residual = 0.000791544, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.03394696, Final residual = 0.0002271798, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.01405888, Final residual = 8.895992e-005, No Iterations 4 GAMG: Solving for p_rgh, Initial residual = 0.009398774, Final residual = 6.151751e-005, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.01363227, Final residual = 9.886645e-005, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.0266589, Final residual = 0.0002343467, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.05440896, Final residual = 0.0005054366, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.1066077, Final residual = 0.001021793, No Iterations 5 GAMG: Solving for p_rgh, Initial residual = 0.1834895, Final residual = 0.001765707, No Iterations 5 time step continuity errors : sum local = 1.271341e+022, global = 2.479593e+021, cumulative = 6.981974e+036 Min/max rho:0.55 0.55 DILUPBiCG: Solving for epsilon, Initial residual = 1, Final residual = nan, No Iterations 101 DILUPBiCG: Solving for k, Initial residual = nan, Final residual = nan, No Iterations 101 Solving for fluid region water smoothSolver: Solving for Ux, Initial residual = 7.045395e-008, Final residual = 7.045395e-008, No Iterations 0 smoothSolver: Solving for Uy, Initial residual = 3.340629e-008, Final residual = 3.340629e-008, No Iterations 0 smoothSolver: Solving for Uz, Initial residual = 1.967e-008, Final residual = 1.967e-008, No Iterations 0 smoothSolver: Solving for h, Initial residual = 0.002853995, Final residual = 1.045642e-005, No Iterations 1 Min/max T:300 450 GAMG: Solving for p_rgh, Initial residual = 1, Final residual = nan, No Iterations 1000 GAMG: Solving for p_rgh, Initial residual = nan, Final residual = nan, No Iterations 1000 --> FOAM FATAL IO ERROR: wrong token type - expected Scalar, found on line 0 the word 'nan' file: C:/OpenFOAM/Aadhi-3.0.x/run/EGRC2_OF_Case/system/water/data.solverPerformance.p_rgh at line 0. From function operator>>(Istream&, Scalar&) in file lnInclude/Scalar.C at line 93. FOAM exiting |
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April 15, 2017, 01:05 |
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#5 |
Senior Member
Uwe Pilz
Join Date: Feb 2017
Location: Leipzig, Germany
Posts: 744
Rep Power: 15 |
Your simulation gains turbulence energy in every step. This may be due to an unfortunately formulation of your problem or due to incorrect boundary conditions.
I recommend to write the result every step and look at it with paraView. The regions which give the problems arise then. After that you have to check your model.
__________________
Uwe Pilz -- Die der Hauptbewegung überlagerte Schwankungsbewegung ist in ihren Einzelheiten so hoffnungslos kompliziert, daß ihre theoretische Berechnung aussichtslos erscheint. (Hermann Schlichting, 1950) |
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April 15, 2017, 05:50 |
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#6 |
Senior Member
Join Date: Sep 2013
Posts: 353
Rep Power: 21 |
Hi,
I have looked at the case. A few quick things. Why the total temperature boundary condition instead of fixed value? Why is the flowRate defined on both inlet and outlet. Keep the inletOutlet Condition but delete the flowRate lines at the outlet. You define k as a fixedValue on both inlet and outlet. The boundary conditions are all mixed up. And one last thing to consider. This is not a good mesh. remeshing with blockMesh would greatly improve your results! Last edited by Bloerb; April 15, 2017 at 14:29. |
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April 24, 2017, 22:13 |
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#7 |
New Member
Aditya Patil
Join Date: Jan 2017
Posts: 9
Rep Power: 9 |
Dear All,
I am still stuck with the same problem even though i have made the corrections mentioned in earlier comments, i am not able to get the results. If someone has solved a similar case please contact me so that i can know where i am going wrong. Regards, Aditya Patil |
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