Fluids

Fluids

SEGMENTATION FAULT

    • lancer
      Subscriber

      Hello, based on the error below what is more likely be the problem? I'm running a CFD Fluid through a Fluid to Solid to Fluid Body.

       

      Node 3 Fatal signal raised sig = Segmentation fault
       417da730 CX_Primitive_Error
       f8c57f30 seh_filter_exe
       4187ef90 logical_right_shift
       f95ebe70 _C_specific_handler
       77ba7de0 RtlDecodePointer
       77b97910 RtlUnwindEx
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       4042fd10 user_sources
       3f8b0a30 User_Mass_Sources
       3f816100 alloc_mp_drag_coeff
       3f201d80 Models_Send_update_solve
       3f74d1d0 solver_update
       3f749870 Flow_Iterate
       3f0d16f0 ResetMixedInteriorThreadType
       4186a550 eval
       3f1de030 PRF_Command_Start
       3f1e0800 PRF_Node_repl
       3f1e10c0 init_rsubrs
       4187ef90 logical_right_shift
       77a759b0 BaseThreadInitThunk
       77baa2c0 RtlUserThreadStart
       
      Error [node 3] [time 8/2/22 14:35:32] Abnormal Exit!
      Node 3 Fatal signal raised sig = Segmentation fault
       4214a730 CX_Primitive_Error
       f8c57f30 seh_filter_exe
       421eef90 logical_right_shift
       f95ebe70 _C_specific_handler
       77ba7de0 RtlDecodePointer
       77b97910 RtlUnwindEx
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       40fc2700 UDS_Derivatives
       40fc2700 UDS_Derivatives
       3fb71d80 Models_Send_update_solve
       400bd1d0 solver_update
       400b9870 Flow_Iterate
       3fa416f0 ResetMixedInteriorThreadType
       421da550 eval
       3fb4e030 PRF_Command_Start
       3fb50800 PRF_Node_repl
       3fb510c0 init_rsubrs
       421eef90 logical_right_shift
       77a759b0 BaseThreadInitThunk
       77baa2c0 RtlUserThreadStart
       
      Error [node 3] [time 8/2/22 14:41:55] Abnormal Exit!
      Node 3 Fatal signal raised sig = Segmentation fault
       4185a730 CX_Primitive_Error
       f8c57f30 seh_filter_exe
       418fef90 logical_right_shift
       f95ebe70 _C_specific_handler
       77ba7de0 RtlDecodePointer
       77b97910 RtlUnwindEx
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       406d2700 UDS_Derivatives
       406d2700 UDS_Derivatives
       3f281d80 Models_Send_update_solve
       3f7cd1d0 solver_update
       3f7c9870 Flow_Iterate
       3f1516f0 ResetMixedInteriorThreadType
       418ea550 eval
       3f25e030 PRF_Command_Start
       3f260800 PRF_Node_repl
       3f2610c0 init_rsubrs
       418fef90 logical_right_shift
       77a759b0 BaseThreadInitThunk
       77baa2c0 RtlUserThreadStart
       
      Error [node 3] [time 8/2/22 14:43:30] Abnormal Exit!
      Node 3 Fatal signal raised sig = Segmentation fault
       41fda730 CX_Primitive_Error
       f8c57f30 seh_filter_exe
       4207ef90 logical_right_shift
       f95ebe70 _C_specific_handler
       77ba7de0 RtlDecodePointer
       77b97910 RtlUnwindEx
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       77bcba9a KiUserExceptionDispatcher
       40e52700 UDS_Derivatives
       40e52700 UDS_Derivatives
       3fa01d80 Models_Send_update_solve
       3ff4d1d0 solver_update
       3ff49870 Flow_Iterate
       3f8d16f0 ResetMixedInteriorThreadType
       4206a550 eval
       3f9de030 PRF_Command_Start
       3f9e0800 PRF_Node_repl
       3f9e10c0 init_rsubrs
       4207ef90 logical_right_shift
       77a759b0 BaseThreadInitThunk
       77baa2c0 RtlUserThreadStart
       
      Error [node 3] [time 8/2/22 14:46:20] Abnormal Exit!

       

    • Rob
      Ansys Employee

      Was there anything in the TUI window? That looks like an error log, and isn't showing much in this case. 

      • lancer
        Subscriber

         

        Only this shown in TUI window

    • Rob
      Ansys Employee

      SIGSEV tends to mean something in the solver didn't make sense. What models have you got switched on. Pictures will help too. 

      • lancer
        Subscriber

        I'm currently using the models addon module SOFC with Unresolved Electrolyte. I followed the guide as per link https://www.afs.enea.it/project/neptunius/docs/fluent/html/fuelcells/node57.htm

        However, some I don't quite understand. When I want to select contact surface or the anode/cathode interface, there is two possible correct selection which is the walls and walls-shadow. Which one should I choose?

        Next is the UDS Conductivity, do I apply UDS conductivity to all solid material or just the interconnect. Sometimes this also cause the No such files or directory error to occur and sometimes it is okay.

        Speaking of No such files or directory. The guide doesn't help me when it comes to Source term. I used the built in udf source:sofc. But the error no such files or directory occcurred

        Sometimes its okay, but shown the SIGSEV error. The guide doesn't help much.

        Any comment on this?

    • lancer
      Subscriber

      Also, do I need to input the reaction parameter. Because none of the journal I read mention about the reaction.

    • Rob
      Ansys Employee

      If you're switching between wall & wall:shadow that could explain the problems. Walls with cells on both sides use that naming convention, and on a solid-fluid bounary that means one side knows about the fluid data and the other doesn't. 

      Also, use Help from within Fluent. The link you provided is likely out of date and shouldn't be there. 

Viewing 4 reply threads
  • You must be logged in to reply to this topic.