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Variable BC in time and space for transient run |
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April 12, 2006, 09:23 |
Variable BC in time and space for transient run
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#1 |
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Dear all,
I want to set up a boundary conditions using a function with 2 variables using CFX-10 Pre. I know how to set up a function of one variable (space or time for ex.) by importing a text file (create user function), but I cannot find out how to impose a BC function of space AND time. Any help is highly appreciated! Thanks!! Porry |
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February 20, 2012, 06:04 |
UDF space AND time
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#2 |
New Member
Kamil Sobczak
Join Date: Jan 2010
Location: Warsaw, Poland
Posts: 6
Rep Power: 16 |
The same for me in Fluent
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February 21, 2012, 10:38 |
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#3 |
Senior Member
Join Date: Apr 2009
Posts: 531
Rep Power: 21 |
There's really no good way to do this in CFX. If you only have a few timestep, then you can set up a CEL expression that contains a series of if() statements all summed together, so different files get read at different timesteps. But that's not practical for many timesteps and it's not interpolating data in time, it's just using a different file at different timesteps.
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