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harerton July 29, 2011 15:01

Transient boundary condition
 
Hi,

I am preparing a LES simulation in CFX13 and I want the inlet velocity profile to vary with time. I have the time series of velocity u, v and w components from a previous simulation for some points of the inlet boundary. How do I make CFX read these values at each timestep?

Thanks!

ghorrocks July 30, 2011 08:10

I assume you have quite a bit of spacial and temporal resolution in your dataset so that it is too big to fit in CEL. In that case probably best to write a fortran routine which reads the file each timestep.

harerton August 1, 2011 10:05

Thanks for answering!

Do you have any idea of where I can find a similar example or a tutorial? The help files were not of much help.

Thanks!

ghorrocks August 1, 2011 18:26

I don't know of any available examples, but CFX support probably has one at hand. I would ask them.

harerton August 2, 2011 11:01

Thanks! I'll try to contact them!

kjrzyh January 10, 2013 03:52

Quote:

Originally Posted by harerton (Post 318094)
Hi,

I am preparing a LES simulation in CFX13 and I want the inlet velocity profile to vary with time. I have the time series of velocity u, v and w components from a previous simulation for some points of the inlet boundary. How do I make CFX read these values at each timestep?

Thanks!

Hi,harerton.I meet the same problem with you.I want to by the uesr fortran to solve.but i don't how to do .Can you tell me your method? thank you!:)


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