User defined boundary condition for profile of wall

Rajkool · May 31, 2021, 07:41

Hello all,

I am working in Ansys fleunt. In my model, I have a wall that has 4000 points or nodes of the mesh. I would like to give temperature only for some mesh coordinates for the wall (say around113 nodes) for my model. But, as I am giving temperature to some nodes, Ansys fluent showing an error (which can be seen in the image).

But, if I give temperature to all points or nodes. Ansys is taking it as a forced boundary condition, which is not at all acceptable. So, I would like to take suggestions like is there any option in Fluent or any other approach for limiting the temperature to some nodes and other nodes that can show temperature variation. Please let me know if you need any other information.

Thank you

Raj

pakk · May 31, 2021, 11:03

Split the wall in two parts...

AlexanderZ · May 31, 2021, 21:51

also, from my point of view, you can try to use UDF -> define_profile macro
check ansys fluent customization manual

May 31, 2021, 07:41	User defined boundary condition for profile of wall	#1
Rajkool Member Raj Join Date: Jan 2020 Posts: 92 Rep Power: 6	Hello all, I am working in Ansys fleunt. In my model, I have a wall that has 4000 points or nodes of the mesh. I would like to give temperature only for some mesh coordinates for the wall (say around113 nodes) for my model. But, as I am giving temperature to some nodes, Ansys fluent showing an error (which can be seen in the image). But, if I give temperature to all points or nodes. Ansys is taking it as a forced boundary condition, which is not at all acceptable. So, I would like to take suggestions like is there any option in Fluent or any other approach for limiting the temperature to some nodes and other nodes that can show temperature variation. Please let me know if you need any other information. Thank you Raj

May 31, 2021, 11:03		#2
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	Split the wall in two parts... __________________ "The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform" is NOT the error after compiling. It is the error after loading. To see compiler errors, look at your screen after you click "build".

May 31, 2021, 21:51		#3
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	also, from my point of view, you can try to use UDF -> define_profile macro check ansys fluent customization manual __________________ best regards ****************************** press LIKE if this message was helpful

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