Ansys Assistant will be unavailable on the Learning Forum starting January 30. An upgraded version is coming soon. We apologize for any inconvenience and appreciate your patience. Stay tuned for updates.
Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

Error: Divergence detected in AMG solver: epsilon

    • luisaciriaco
      Subscriber
      Hello guys, nI'm having problems with my simulation and I don't know for sure what is happening. If anyone could help me, I'd really appreciate it.nMy simulation is an intake from a reservoir, where the inlet is a constant velocity (velocity-inlet BC) and the outlet works like a valve, so I have a governing equation for my outlet, which is:(730.39 [kg s^-2] * Time), and I'm using mass-flow-outlet BC. My mesh has good values for ortogonality quality and skewness.nHowever, after some interactions of standard k-epsilon, the calculation crashes and returns the message:Error at Node 2:floating point exceptionnError at Node 0:floating point exceptionnError at Node 1:floating point exceptionnError at Node 3:floating point exception    nStabilizing epsilon to enhance linear solver robustness.    nStabilizing epsilon using GMRES to enhance linear solver robustness.nDivergence detected in AMG solver:epsilon nturbulent viscosity limited to viscosity ratio of 1.000000e+05 in 61502 cells nDivergence detected in AMG solver:epsilonnDivergence detected in AMG solver:epsilonnDivergence detected in AMG solver:epsilonnError at host:floating point exceptionI'm using hybrid initialization. Does anyone know how to solve this, please?nThank you in advance,nLuisa.
    • RK
      Ansys Employee
      Hello, nMay I know which version you are using? Did you try the k-omega SST?n
Viewing 1 reply thread
  • The topic ‘Error: Divergence detected in AMG solver: epsilon’ is closed to new replies.
[bingo_chatbox]