Learning Forum

[Luigi0]

Hi

please help me to fix the following error :

system coupling for Ansys Fluent(with dynamic mesh(6DOF)) and Transient thermal.

 

 

 +====================================================================+

 |                      System Coupling Exception                     |

 +====================================================================+

 | Origin            : Fluid Flow (Fluent) (Solution 2)               |

 | Error Code        : 20                                             |

 | Error Description :                                                |

 |   Exception encountered when the coupling service requested        |

 |   ChartableData->GetRootLevelName: Communication socket            |

 |   unexpectedly disconnected.                                       |

 +====================================================================+

[Karthik Remella]

This error generally occurs when the tools lose connection with the license manager. Is there something happening at your end which might result in a disconnection with the license manager? Firewall / Remote desktop / Internet connection?nThanks.nKarthikn

[Luigi0]

Thanks for the reply. nI am using a remote desktop connection, and yes before the analysis stops, I have this problem (see image). Sorry for the italian language, but the error says that fl_mpi1910.exe has stopped working. This occurs only when the coupled analysis is launched with fluent in parallel. nWhen I open fluent in serial, this problem doesn't come up, but I have another problem regarding Update dynamic mesh failed. Negative cell volume detected.nn

[Karthik Remella]

Negative cell volume error is completely different. It just means that the Fluent mesh is becoming completely skewed and you simulation is no longer able to converge correctly. nThe earlier error seems to be pointing towards some kind of license issue. Let me check with an expert and get back to you.nThank you.nKarthikn

[Luigi0]

Ok, thanks for your help.nLuigin