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-   -   Axis Symmetry BC (https://www.cfd-online.com/Forums/fluent/110428-axis-symmetry-bc.html)

Manish Kumar December 11, 2012 06:04
Axis Symmetry BC
 
Is it necessary that in FLUENT the axis symmetry boundary should be aligned with x-axis. Is it possible to apply 'axis' as boundary condition to axis aligned with y-axis. I am applying this axis symmetry condition for first time, so had doubts.

kind regards..manish

ATD December 11, 2012 10:58
You can align axis symmetric boundary on any axis you like. You just have to indicate the axis for the boundary.
Good luck

ghost82 December 11, 2012 12:15
Quote:
Originally Posted by ATD (Post 396947)
You can align axis symmetric boundary on any axis you like. You just have to indicate the axis for the boundary.
Good luck
Not true; if the axis is y or z you will get amg error; for axis symmetric problems the axis of symmetry MUST be x!!!

Daniele

LuckyTran December 11, 2012 12:43
Quote:
Originally Posted by ghost82 (Post 396963)
Not true; if the axis is y or z you will get amg error; for axis symmetric problems the axis of symmetry MUST be x!!!

Daniele
axis of symmetry must be X-axis as Daniele mentioned.

Quote:
Originally Posted by ATD (Post 396947)
You can align axis symmetric boundary on any axis you like. You just have to indicate the axis for the boundary.
Good luck
You cannot set the axis.

Manish Kumar December 11, 2012 14:30
thanx ghost82 and LuckyTran
actually amg divergence error was the problem i encountered so asked to be fully sure of my thoughts..

charade_4eft May 26, 2023 05:36
Is it possible to specify "axis" parallel to x-axis?

LuckyTran May 26, 2023 12:00
No, axis must be a boundary that lies exactly on the x-axis within tolerance or you will get a warning and error


You must translate your geometry such that the x-axis is the rotation axis


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