Perform test-filtering on a field

[Mohammad]

Hello,

I want to perform a test-filtering on a field.

It seems that in previous versions there was a subroutine called "cfiltr". (According to this topic: viewtopic.php?t=1133 and ver 4.0 doxygen: cfiltr)

But in current versions there's no subroutine with that name. Is it renamed or changed?

Regards,

Mohammad

[Yvan Fournier]

Hello,

cfiltr has been renamed to cs_les_filter.

Regards,

Yvan

[Mohammad]

Dear Yvan,
Hello and thanks for your reply.

If it is renamed, then why cs_les_filter and cfiltr both exist in version 4.0 doxygen?(link)
While in version 5.0 there is only cs_les_filter.(link)

It seems their inputs are different at least in the number of required elements.

If it is OK, is there an example of cs_les_filter usage? Specially about the first input stride.
For example if I want to filter the velocity field, how can I do that with cs_les_filter? What should I set for stride input?

Regards,

Mohammad

[Yvan Fournier]

Hello,

In version 4.0, the name of the function and file containing it were different. They have been aligned in 5.0.

To find examples of the use of this function, you need to search for its use in the source code. I am not sure of other examples of its use. You will also need to force the use of the extended neighborhood (modify the "haltyp" function) if you plan to use it for something else than LES with dynamic Smagorinsky filter.

Regards,

Yvan

[Mohammad]

Dear Yvan,

Thank you very much.

Regards,

Mohammad