October 31, 2022 at 7:23 pmJen-Ping ChuSubscriber
When all the model setup is ready with no error, the initialization gets terminated due to the unknown cortex error. Due to the cortex error, initialization and the following patch process is prohibited.
workbench also comes up with such error:
Ansys.Fluent.Cortex.CortexCommandFailedException: An error occurred in FLUENT when initializng the flow An error occurred in FLUENT when initializng the flow at Ansys.Fluent.Cortex.CortexCommunicator.SendMessage(String msg, String msgKey, String errorMessage, Boolean waitForReply) at Ansys.Fluent.FluentCommunicator.Initialize() at Ansys.Fluent.Data.SolutionData.InitializeOrLoadCurrentData(IProtectedContext context) at Ansys.Fluent.Data.SolutionData.LoadFiles(IFullContext context) at Ansys.Fluent.Data.SolutionData.LaunchFluentAndRead(IFullContext context, Boolean batchMode, Boolean internallyStarted) 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: An error occurred in FLUENT when initializng the flow An error occurred in FLUENT when initializng the flow CommandName: Fluent.Edit(Container="Solution 1") 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.GuiUtilities.GetLauncherSettingsAndEdit(GuiOperationContext operationContext, DataContainerReference cref, LauncherEditMode editMode) 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)
November 1, 2022 at 11:23 amRobAnsys Employee
Is the model 2d or 3d? Have you checked the mesh and cell quality?
November 1, 2022 at 5:29 pmJen-Ping ChuSubscriber
It's a 2D model. Yes, I do reduce the mesh number as well, but the model still couldn't work. On the other hand, I have another model with the same mesh quality but a slightly different boundary name selection in meshing phase, it didn't come with the same error.
November 1, 2022 at 5:31 pmRobAnsys Employee
Try meshing with tri elements, or force a pave mesh. The jump in cell size may cause some issues. Note, I was referring to quality metrics, not cell count reduction.
November 1, 2022 at 5:34 pmJen-Ping ChuSubscriber
I haven't try according to your suggestion. But based on my screenshot, there wasn't serious jump in cell size?
November 2, 2022 at 10:00 amRobAnsys Employee
Look just above the inlet. You also have cells with relatively high aspect ratio with (probable) cross flow, that may not cause an initialisation issue but won't help get a converged solution.
November 4, 2022 at 5:40 pm
November 7, 2022 at 9:18 amRobAnsys Employee
Which suggests you've not read the profile in, or that there's a problem there.
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