Boundary conditions

newminde · June 27, 2012, 03:01

Hi everyone.
Maybe someone have some advices how to use already created boundary condition for the new boundary condition.
For example I have two square's. For one square I have already make boundary conditions like A-300k,B-300K,C-300K,D-500K.
Secondly for the second square I used A1-300k,B1-300K,C1-300, D1- UDF??
How to write UDF for the D1 taking the value of D boundary condition.
What macros should I use?
Thnx

flotus1 · June 27, 2012, 04:11

Could you be a bit more specific on what you want to achieve?

I assume the Boundary condition you mentioned are of the fixed-temperature type, so D has a value of 500K. did I get this correctly?

In the next simulation you want to use the "old" value of D as the new value of D1? So what would be the point of using a UDF?

newminde · June 27, 2012, 04:45

Correct.
The goal is to understand how use UDF for taking values from other objects, latter I'll do complex computations.
For example if we have 100 objects how I can take a boundary condition from the 52 object to the 22 obect.

June 27, 2012, 03:01	Boundary conditions	#1
newminde New Member Mindaugas Join Date: Jun 2012 Posts: 25 Rep Power: 13	Hi everyone. Maybe someone have some advices how to use already created boundary condition for the new boundary condition. For example I have two square's. For one square I have already make boundary conditions like A-300k,B-300K,C-300K,D-500K. Secondly for the second square I used A1-300k,B1-300K,C1-300, D1- UDF?? How to write UDF for the D1 taking the value of D boundary condition. What macros should I use? Thnx Last edited by newminde; June 27, 2012 at 03:24.

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June 27, 2012, 04:11		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,398 Rep Power: 46	Could you be a bit more specific on what you want to achieve? I assume the Boundary condition you mentioned are of the fixed-temperature type, so D has a value of 500K. did I get this correctly? In the next simulation you want to use the "old" value of D as the new value of D1? So what would be the point of using a UDF?

June 27, 2012, 04:45		#3
newminde New Member Mindaugas Join Date: Jun 2012 Posts: 25 Rep Power: 13	Correct. The goal is to understand how use UDF for taking values from other objects, latter I'll do complex computations. For example if we have 100 objects how I can take a boundary condition from the 52 object to the 22 obect.