local coodinate system fluent

AP3181 · August 5, 2015, 05:19

Hello all,

I'm new to Fluent and I'm struggling with the coordinate system. I defined a local coordinate system in fluent Meshing. Now I want the solver to use this local coordinate system. Is that possible?

Hope someone can help me with this
Regards

LuckyTran · August 5, 2015, 14:20

You can always scale/translate/rotate the mesh in Fluent so that it consistent with your coordinate system.

AP3181 · August 6, 2015, 09:52

Thank you for your quick response LuckyTran!

Due to the geometry I defined a local cylindrical coordinate system which I want fluent to use. Makes my life much easier in writing my UDF. (My geometry has an annular shape)
have you got experience with this? tips or advies are more than welkom!

Regards

LuckyTran · August 10, 2015, 16:10

In GUI:
Mesh=>Translate
Mesh=>Rotate

Similarly in TUI
/mesh/translate
/mesh/rotate

Repeat until you have the correct coordinate system.

August 5, 2015, 05:19	local coodinate system fluent	#1
AP3181 New Member NNM_BSP Join Date: Aug 2015 Posts: 9 Rep Power: 11	Hello all, I'm new to Fluent and I'm struggling with the coordinate system. I defined a local coordinate system in fluent Meshing. Now I want the solver to use this local coordinate system. Is that possible? Hope someone can help me with this Regards

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August 5, 2015, 14:20		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	You can always scale/translate/rotate the mesh in Fluent so that it consistent with your coordinate system.

August 6, 2015, 09:52		#3
AP3181 New Member NNM_BSP Join Date: Aug 2015 Posts: 9 Rep Power: 11	Thank you for your quick response LuckyTran! Due to the geometry I defined a local cylindrical coordinate system which I want fluent to use. Makes my life much easier in writing my UDF. (My geometry has an annular shape) have you got experience with this? tips or advies are more than welkom! Regards

August 10, 2015, 16:10		#4
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	In GUI: Mesh=>Translate Mesh=>Rotate Similarly in TUI /mesh/translate /mesh/rotate Repeat until you have the correct coordinate system.