Fluids

Fluids

DPM and Dynamic Mesh in two opposite directions

    • mreza65
      Subscriber

      Hi,


      I am working on a channel with two membranes at the bottom. When the fluid is water, I can run my simulation in each configuration. However, when membrane movement is out of phase (i.e. : one membrane goes up and the other goes down) I cannot run my simulation. After the first time step, some errors pop up like below:


      Advancing DPM injections ....


      number tracked = 100, escaped = 0, aborted = 0, trapped = 0, evaporated = 0, incomplete = 0, incomplete_parallel = 0


       


      iter continuity x-velocity y-velocity energy time/iter


      20 9.1819e-04 1.9813e-05 2.4465e-05 8.0521e-17 0:00:05 20


      Stabilizing x-momentum to enhance linear solver robustness.


      Stabilizing x-momentum using GMRES to enhance linear solver robustness.


       


      Divergence detected in AMG solver: x-momentum Stabilizing y-momentum to enhance linear solver robustness.


      Stabilizing y-momentum using GMRES to enhance linear solver robustness.


       


      Divergence detected in AMG solver: y-momentum Stabilizing pressure correction to enhance linear solver robustness.


      Stabilizing pressure correction using GMRES to enhance linear solver robustness.


       


      Divergence detected in AMG solver: pressure correction Stabilizing temperature to enhance linear solver robustness.


      Stabilizing temperature using GMRES to enhance linear solver robustness.


       


      Divergence detected in AMG solver: temperature


      Divergence detected in AMG solver: x-momentum


      Divergence detected in AMG solver: y-momentum


      Divergence detected in AMG solver: pressure correction


      Divergence detected in AMG solver: temperature


      Divergence detected in AMG solver: x-momentum


      Divergence detected in AMG solver: y-momentum


      Divergence detected in AMG solver: pressure correction


      Divergence detected in AMG solver: temperature


      Divergence detected in AMG solver: x-momentum


      Divergence detected in AMG solver: y-momentum


      Divergence detected in AMG solver: pressure correction


      Divergence detected in AMG solver: temperature


      Divergence detected in AMG solver: x-momentum


      Divergence detected in AMG solver: y-momentum


      Divergence detected in AMG solver: pressure correction


      Divergence detected in AMG solver: temperature


      Divergence detected in AMG solver: x-momentum


      Divergence detected in AMG solver: y-momentum


      Divergence detected in AMG solver: pressure correction


      Divergence detected in AMG solver: temperature


      Divergence detected in AMG solver: x-momentum


      Divergence detected in AMG solver: y-momentum


      Divergence detected in AMG solver: pressure correction


      Divergence detected in AMG solver: temperature


      Error at host: floating point exception


       


       


       


       


       


       


       


      Error at Node 0: floating point exception


      Error at Node 4: floating point exception


      Error at Node 3: floating point exception


      Error at Node 5: floating point exception


      Error at Node 2: floating point exception


      Error at Node 6: floating point exception


      Error at Node 1: floating point exception


       


      Error: floating point exception


       


      Error Object: #f


       


      I tried different mesh configurations, but I could not fix it up.


      I highly appreciate it if I know your feedback.


      regards

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