Axis Symmetry BC

Manish Kumar · December 11, 2012, 07:04

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, 11:58

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, 13:15

Quote:

Originally Posted by ATD

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, 13:43

Quote:

Originally Posted by ghost82

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

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, 15:30

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, 06:36

Is it possible to specify "axis" parallel to x-axis?

LuckyTran · May 26, 2023, 13:00

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

December 11, 2012, 07:04	Axis Symmetry BC	#1
Manish Kumar New Member Manish Join Date: Oct 2011 Location: Jamshedpur Posts: 6 Rep Power: 15	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

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December 11, 2012, 11:58		#2
ATD New Member Aleksander Join Date: Dec 2012 Posts: 7 Rep Power: 13	You can align axis symmetric boundary on any axis you like. You just have to indicate the axis for the boundary. Good luck

December 11, 2012, 15:30		#5
Manish Kumar New Member Manish Join Date: Oct 2011 Location: Jamshedpur Posts: 6 Rep Power: 15	thanx ghost82 and LuckyTran actually amg divergence error was the problem i encountered so asked to be fully sure of my thoughts..

May 26, 2023, 06:36		#6
charade_4eft New Member Haider Ali Join Date: May 2023 Posts: 8 Rep Power: 3	Is it possible to specify "axis" parallel to x-axis?

May 26, 2023, 13:00		#7
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,751 Rep Power: 66	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