Error: SIGSEGV(segmentation violation)

- September 24, 2024 at 6:26 pm
  
  juan.parra1
  Subscriber
  
  Im doing a volume mesh in my geometry. It consist in 5 NACA profiles in a rotational domain. The local sizing in my turbine that is modeled as a wall is 0.85mm and the local sizing at the sphere wich is my domain is 16mm. The minimum space between those elements is 50 mm.
  Im having a lot of problems doing the volume mesh: SIGSEGV(segmentation violation) , Error: Volume meshing was not successful, likely due to unresolved gaps. Edit the Create Volume Task and in Advanced Options, set Check Self Proximity to 'yes' before re-execution.
  What can i do to resolve those problems?
- September 25, 2024 at 10:42 am
  
  V.P
  Ansys Employee
  
  Hi Juan,
  To easily identify gaps in Fluent meshing, the best approach is to apply shared topology within Fluent Meshing. Start by enabling the "shared topology" option in the "Describe Geometry" task, which automatically adds a new "Shared Topology" task to your workflow. By selecting the "Mark Gaps" option, you can visualize any unresolved gaps in the model that may be causing mesh failures.
  Alternatively, you can remove gaps directly from the "Outline" tab. Simply right-click on the mesh object, navigate to "Advanced," and select "Remove Gaps."
  For more detailed information on the "Remove Gaps" option, refer to the section 10.5.2: Removing Gaps Between Mesh Objects in the ANSYS Fluent User Guide: 10.5. Advanced Options (ansys.com)
- January 20, 2026 at 3:26 pm
  
  3249622251
  Subscriber
  
  I encountered an error while using Fluent Meshing to generate a surface mesh. After setting up rotational periodic boundaries and optimizing mesh quality, I am unable to save the file. The error message is: Error at Node 0: SIGSEGV (segmentation violation). How can I resolve this issue?
  I successfully saved once after setting the periodic boundaries and optimizing the mesh initially, but subsequent optimization attempts failed to save.Moreover, I can proceed to set up boundary layer meshes, but similarly, I am unable to save the project or generate the volume mesh.The error at this stage is still Error at Node 0: SIGSEGV (segmentation violation).
  What can i do to resolve those problems?