[ANSYS Meshing] Difference between "Update" and "Generate Mesh" button

elmo555 · July 25, 2016, 15:48

Hello,

what's the difference between the "Update" and "Generate Mesh" button in Ansys Meshing? Both have the same symbol, so do they also do the same thing?

Another issue: Is there a way to really force an update (e.g. completely deleting the old mesh and starting from scratch) of the entire mesh? I have the feeling that updating the mesh sometimes neglects changes to settings.

In my case, a lot of faces are included in a named component, which is included in program-controlled inflation. I removed a few faces from that section and expected no inflation layers at those faces, but they still appeared.

Any ideas? Every tip is appreciated! Thanks!

Antonio Mota · January 31, 2017, 08:25

According to www.sharcnet.ca:

In contrast to the Generate Mesh feature (which only produces the mesh), the Update feature determines whether the geometry needs to be updated, refreshes the geometry if necessary, generates the mesh if necessary, and also writes the output data for any connected cells:

The Generate Mesh feature is useful when you are investigating the impact of different settings on the mesh but you are not ready to export the mesh files.

The Update feature is useful if you make a connection in the ANSYS Workbench Project Schematic from a Mesh cell to a system that requires a new type of output data (for example, if you make a connection from the Mesh cell to a Fluid Flow (CFX) or Fluid Flow (Fluent) analysis system). In such cases, the Mesh cell will go out-of-date. To bring the Mesh cell up-to-date, you can perform an Update on the Mesh cell from within the Project Schematic, or follow the procedure below from within the Meshing application.

If you connect a Mesh component system to an analysis system and the mesh file contains an assembly mesh, the mesh file must be an ANSYS Fluent mesh file (*.msh) for it to be consumed by the downstream system's solver. If the mesh file is of any other type, the Update fails and an error message is issued.

July 25, 2016, 15:48	Difference between "Update" and "Generate Mesh" button	#1
elmo555 Member Lennart Join Date: Feb 2016 Posts: 46 Rep Power: 10	Hello, what's the difference between the "Update" and "Generate Mesh" button in Ansys Meshing? Both have the same symbol, so do they also do the same thing? Another issue: Is there a way to really force an update (e.g. completely deleting the old mesh and starting from scratch) of the entire mesh? I have the feeling that updating the mesh sometimes neglects changes to settings. In my case, a lot of faces are included in a named component, which is included in program-controlled inflation. I removed a few faces from that section and expected no inflation layers at those faces, but they still appeared. Any ideas? Every tip is appreciated! Thanks!

January 31, 2017, 08:25		#2
Antonio Mota New Member Antonio Mota Join Date: Jan 2017 Posts: 1 Rep Power: 0	According to www.sharcnet.ca: In contrast to the Generate Mesh feature (which only produces the mesh), the Update feature determines whether the geometry needs to be updated, refreshes the geometry if necessary, generates the mesh if necessary, and also writes the output data for any connected cells: The Generate Mesh feature is useful when you are investigating the impact of different settings on the mesh but you are not ready to export the mesh files. The Update feature is useful if you make a connection in the ANSYS Workbench Project Schematic from a Mesh cell to a system that requires a new type of output data (for example, if you make a connection from the Mesh cell to a Fluid Flow (CFX) or Fluid Flow (Fluent) analysis system). In such cases, the Mesh cell will go out-of-date. To bring the Mesh cell up-to-date, you can perform an Update on the Mesh cell from within the Project Schematic, or follow the procedure below from within the Meshing application. If you connect a Mesh component system to an analysis system and the mesh file contains an assembly mesh, the mesh file must be an ANSYS Fluent mesh file (*.msh) for it to be consumed by the downstream system's solver. If the mesh file is of any other type, the Update fails and an error message is issued.