Wildcard ".*" before or after other boundaries?

Clau.77 · June 24, 2021, 05:50

Hey guys,

i was just wondering: if I use ".*" for my boundaries and want to specify e.g. the inlet differently, does the order matter? If yes, which should come first?

HPE · June 24, 2021, 07:50

The safest way is to try it with a small case.

But, I would expect that the order would have an effect. I would be surprised if the order would not have any effect.

I remember, the order was affecting the Lagrangian particle interaction models.

So, for your specific case, I would put ".*" first, and then "inlet" condition after that.

Tobermory · June 24, 2021, 08:10

Check out this post, from a while back: Repeated keywords in the dictionary - useful info

The order DOES matter, as HPE says, but unfortunately it's not as simple as "the last instance counts" which was my initial gut feel.

June 24, 2021, 05:50	*Wildcard "." before or after other boundaries?**	#1
Clau.77 Member Claudia Join Date: Mar 2021 Posts: 43 Rep Power: 5	Hey guys, i was just wondering: if I use ".*" for my boundaries and want to specify e.g. the inlet differently, does the order matter? If yes, which should come first?

June 24, 2021, 07:50		#2
HPE Senior Member Herpes Free Engineer Join Date: Sep 2019 Location: The Home Under The Ground with the Lost Boys Posts: 931 Rep Power: 12	The safest way is to try it with a small case. But, I would expect that the order would have an effect. I would be surprised if the order would not have any effect. I remember, the order was affecting the Lagrangian particle interaction models. So, for your specific case, I would put "." first, and then "inlet" condition after that. __________________ The OpenFOAM community is the biggest contributor to OpenFOAM: User guide/Wiki-1/Wiki-2/Code guide/Code Wiki/Journal Nilsson/Guerrero/Holzinger/Holzmann/Nagy/Santos/Nozaki/Jasak/Primer Governance Bugs/Features: OpenFOAM (ESI-OpenCFD-Trademark) Bugs/Features: FOAM-Extend (Wikki-FSB) Bugs: OpenFOAM.org How to create a MWE New: Forkable OpenFOAM mirror*

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June 24, 2021, 08:10		#3
Tobermory Senior Member Join Date: Apr 2020 Location: UK Posts: 717 Rep Power: 14	Check out this post, from a while back: Repeated keywords in the dictionary - useful info The order DOES matter, as HPE says, but unfortunately it's not as simple as "the last instance counts" which was my initial gut feel.