How to ensure that a particular interoir face zone lies within one partition?
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Sometimes we need to ensure that a particular interior face zone lies within a single partition in a parallel simulation. (Fluent6.1.22 has a bug that we cannot convert an interior face zone that lies in more than one partition into a wall and vice versa). Do the following: --------------------------------------------------- Fluent6.1.22 has the following bug: If the BC of a surface that lies in two or more partition is changed from wall to interior, Fluent gives an invalid thread error and stops iterating. To overcome this we need to ensure that the surface lies in only one partition. For this do the following: - Open case and *data* on single processor (Serial version) - Change the BC of surface from interior to wall - A surface-shadow will be created - Use the text command /grid/modify-zone/slit-face-zone to separate surface and surface-shadow from each other - Change the BC of surface and surface-shadow to interface - Create a non-conformal interface between surface and surface-shadow through the Define->Grid Interfaces panel - Go to Parallel-> Partition and ensure that the check box for "encapsulate grid interfaces" is turned on - Partition the grid into the required number of partitions - Go to Define-> Grid interfaces and delete the non-conformal interface between surface and surface-shadow - Change the BC of surface and surface-shadow to wall - Use the text command define/boundary-condition/modify-zone/fuse-face-zone on the surface and surface-shadow - Change the BC of surface to interior. At this point surface-shadow will disapper automatically. - Save the case and data files. The case is now ready for running. ---------------------------------------------------------------- |
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