Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

Trouble with importing a 3d .msh file from GMSH

    • daniel.fachieri
      Subscriber

      Im trying to simulate a chamber with a few plates inside. The 3d model I designed using gmsh and then generated the .msh file. But in Fluent, especially the watertight geometry workflow, when I try to import the mesh file i got the following message: Warning: no nodes readanalyzing boundary connectivity…done. But no mesh is imported. I've seen people getting problems like this they were using 2d geometries. How can I fix this?  

    • Rob
      Forum Moderator

      If it's a mesh file can't you just read the full volume mesh into Fluent? Otherwise try reading in the boundary mesh. Note, that will probably negate the use of the water tight workflow so you'll need to find the mesh objects in the tree and then volume mesh. 

    • daniel.fachieri
      Subscriber

      I tried importing the full volume of a simple box into fluent but I got this error message:
      Ansys.Fluent.Cortex.CortexNotAvailableException: Exception of type 'Ansys.Fluent.Cortex.CortexNotAvailableException' was thrown.
         at Ansys.Fluent.Data.SetupData.GetCommunicator(IReadLockContainer context)
         at Ansys.Fluent.Data.SetupData.ReadCaseModelInfo(IFullContext context)
         at Ansys.Fluent.Data.SetupData.ReadMeshAndModelInfo(IFullContext context)
         at Ansys.Fluent.Data.SetupData.LoadFiles(IFullContext context)
         at Ansys.Fluent.Commands.EditCommand.Execute(IFullContext context)
         at Ansys.Core.Commands.Concurrency.CommandWorkUnit.executeInContext(CommandContext subContext, IExecutionEngineCallback tracer)
         at Ansys.Core.Commands.Concurrency.BaseWorkUnit.doExecute(IExecutionEngineCallback executionEngine, CommandContext subContext)
         at Ansys.Core.Commands.Concurrency.BaseWorkUnit.Execute(IExecutionEngineCallback executionEngine, Boolean dontCatchExceptions)
      --- Ansys.Core.Commands.CommandFailedException: Exception of type 'Ansys.Fluent.Cortex.CortexNotAvailableException' was thrown.
      CommandName: Fluent.Edit(Container="Setup")
         at Ansys.Core.Commands.CommandAsyncResult.RethrowFailureException(Exception e)
         at Ansys.Core.Commands.CommandAsyncResult.Wait(Int32 milliSecondsTimeout, Boolean exitContext)
         at Ansys.Fluent.Commands.EditCommand.InvokeAndWait(IProtectedContext context, DataContainerReference Container, Boolean Interactive)
         at Ansys.Fluent.Gui.OpenInFluentGui.Invoke(GuiOperationContext context)
         at Ansys.UI.GuiOperationContext.Invoke(GuiOperationMetaData operationData)
         at Ansys.UI.UIManager.InvokeOperationCore(String pseudoname, OperationDelegate callback, Boolean allowOSMessages, Boolean coreTransaction, Boolean deferredRefreshOnly)

    • Rob
      Forum Moderator

      Try reading it into Fluent Meshing. You might get a more diagnostic error. 

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