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Expert parameter : part mmesh intersect option |
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June 13, 2018, 17:19 |
Expert parameter : part mmesh intersect option
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#1 |
Senior Member
Join Date: Aug 2014
Posts: 160
Rep Power: 11 |
Here is the description of this expert parameter given by CFX guide.
This parameter can be used to enable a modified algorithm for partitioning moving mesh cases. The modified algorithm recognizes moving domain interfaces. A value of 1 selects the newer algorithm. A value of 0 selects the original algorithm. The modified algorithm aims to keep both sides of a GGI interface within the same partition, potentially improving convergence behavior in parallel and reducing communication requirements between partitions. This expert parameter affects parallel runs only; it has no effect on serial runs. I don’t understand if this parameter is useful for all interfaces (stage, frozen rotor and transient rotor stator) when we have one rotating domain motion in our simulation or if they are talking about a mesh motion (mesh deformation) in a domain or maybe both? Thank you very much for your help ! |
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June 13, 2018, 20:31 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
The comment only applies to when the mesh is moving. I would suspect that is either mesh deformation simulations or transient rotor-stator simulations. Stage and frozen rotor simulations are not affected by that.
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