[AlbertPressler]

Hi all,

I need to specify an inlet that represents a large rectangular air flow inlet area where a grid of flow velocities and temperatures have been measured in reality. So the resulting modeled inlet boundary would look like a checkerboard, every field representing one measurement.
What would be the easiest way to specify those different inlet BCs without defining all individual inlets in the files?
After looking aroud the forum I guess Groovy BC would be the tool to go for, probably in conjunction with a lookup table that contains the measured data. My problem is, I'm not really familiar with the syntax and I don't know how to define the locations of the inlet fields within the Groovy BC description as well as the data file.
Can someone give me a hint if that would be the right way and how I'd have to define it?

Thanks a lot!

[T.D.]

Hi Albert,

For a checkerboard inlet BC, it will be somehow difficult to handle with groovyBC.

You can directly implement the code in your solver via the following methodology:

// First get the label of your inlet boundary by:
label myinlet = mesh.boundaryMesh().findPatchID("inlet");

// Then get inspired from this thread:

http://www.cfd-online.com/Forums/ope...ion-class.html

Best Regards,

Good Luck !

T.D.

Originally Posted by AlbertPressler

Hi all,

I need to specify an inlet that represents a large rectangular air flow inlet area where a grid of flow velocities and temperatures have been measured in reality. So the resulting modeled inlet boundary would look like a checkerboard, every field representing one measurement.
What would be the easiest way to specify those different inlet BCs without defining all individual inlets in the files?
After looking aroud the forum I guess Groovy BC would be the tool to go for, probably in conjunction with a lookup table that contains the measured data. My problem is, I'm not really familiar with the syntax and I don't know how to define the locations of the inlet fields within the Groovy BC description as well as the data file.
Can someone give me a hint if that would be the right way and how I'd have to define it?

Thanks a lot!

[AlbertPressler]

Thanks a lot T.D. for your answer, but I'm afraid I don't really know what to do with it...
How and where do I specify the inlet conditions for the various patches?
Or would it be easier after all to just set up 64 inlets? Sorry but I'm not much of a coder and not very familiar with chenging solver code...

[T.D.]

OK. You can still learn some coding.
Everybody can (only if he/she wants to)

Regards,
T.D.