piecewise linear boundary condition

alinik · May 27, 2015, 20:35

Hello,

I have a problem.
At one of the boundaries I would like to introduce a boundary profile that is piecewise linear. I have obtained those points from experimentation.
Since it is piecewise linear and they are very scattered I cannot curve fit those data points and use a CEL function for that.
Any idea how to introduce a piecewise linear boundary condition to your computational domain?

Thanks,
Ali
---
user of CFX 15

ghorrocks · May 28, 2015, 00:56

Use a 1D interpolation function.

alinik · May 28, 2015, 13:00

Thanks Glenn,
I think it can solve my problem. I will try and let you know.

May 27, 2015, 20:35	piecewise linear boundary condition	#1
alinik Senior Member ali Join Date: Oct 2009 Posts: 318 Rep Power: 17	Hello, I have a problem. At one of the boundaries I would like to introduce a boundary profile that is piecewise linear. I have obtained those points from experimentation. Since it is piecewise linear and they are very scattered I cannot curve fit those data points and use a CEL function for that. Any idea how to introduce a piecewise linear boundary condition to your computational domain? Thanks, Ali --- user of CFX 15

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May 28, 2015, 00:56		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Use a 1D interpolation function.

May 28, 2015, 13:00		#3
alinik Senior Member ali Join Date: Oct 2009 Posts: 318 Rep Power: 17	Thanks Glenn, I think it can solve my problem. I will try and let you know.