September 12, 2020 at 1:02 pmtyw7SubscriberHow to undo the mesh adaptation done using Fluent 2020R2?n
September 13, 2020 at 5:25 amsubhamdasSubscriberBefore using mesh adaptation, you need to save an instance of the mesh you started with as it is not possible to undo mesh adaptation once it has been performed.n
September 13, 2020 at 1:44 pmtyw7SubscriberWould re-meshing or changing the geometry cause the optimization to be undone?n
September 13, 2020 at 3:22 pmsubhamdasSubscriberYes, it willn
September 13, 2020 at 6:40 pmtyw7SubscriberAh phew. So in summary you can get rid of bad optimizations by either re-meshing or changing the geometry.nnI guess I can force a remesh by making a minor change, say decrease your mesh size, in the mesh and then changing that setting back to the original setting.n
September 14, 2020 at 3:46 pmRobAnsys EmployeeArray ArraynYou can coarsen a mesh which will undo normal adaption, this will return you to the original (or previous state). Anisotropic adaption however is permanent. n
September 15, 2020 at 9:38 pmtyw7Subscriberwait does coarsening a mesh undo the refinement? So if I coarsen and refine by the same setting, I am basicallly resetting the mesh back to the original?n
September 16, 2020 at 9:19 amRobAnsys EmployeeMore or less, because of the way refinement can leak slightly into adjacent cells you may find a few extra cells than in the original mesh but it'll be near enough what you started with. nIt's for a hex mesh, but here's dynamic adaption illustrated Working on 16/9/2020n
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