# Symmetry/Slip condition results in OpenFOAM error

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## Symmetry/Slip condition results in OpenFOAM error

 Hello, I am trying to run the following model shown below and whenever I apply symmetry conditions to the top, left, and right boundaries I receive the following errors. Could not read velocity solution. Check OpenFOAM log file for convergence.                                                                                                                                                                                                         Line 0 in featool                                                                                                                         Line 0 in featool                                                                                                                         Line 0 in featool                                                                                                                         Line 0 in featool                                                                                                                         Line 0 in featool                                                 I have tried removing this boundary condition from some surfaces or adding it to other but it appears that having any symmetry condition within the model causes this error. Do you have any advice on how to fix this? With kind regards, -Stone French
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## Re: Symmetry/Slip condition results in OpenFOAM error

 Administrator I am trying to run the following model shown below and whenever I apply symmetry conditions to the top, left, and right boundaries I receive the following errors. Could not read velocity solution. Check OpenFOAM log file for convergence. I have tried removing this boundary condition from some surfaces or adding it to other but it appears that having any symmetry condition within the model causes this error. Do you have any advice on how to fix this? As this does not seem to really be a FEATool software issue but specific to OpenFOAM, it is recommended to first check the OpenFOAM solver log for warnings and error messages. To do this: "Uncheck" the "Close automatically" checkbox after pressing "Solve" in the OpenFOAM solver control panel. This means that the dialog box will not automatically be closed after the solver finishes so you can check the log file output by switching to the "Log" tab. Furthermore, all possible combinations of boundary and initial conditions are not always compatible in OpenFOAM. In particular, the "slip/symmetry" condition does not always seem to be compatible with the "Natural outflow/stress boundary" condition, in which case you can try to use the "Outflow/pressure" condition instead.