[Arttis]

Hello there,

I am trying to simulate air flowing inside an inclined rectangular cavity.
The extensions at the inlet and outlet of the cavity are there to impose ambient temperature and pressure such that the air is accelerated from the rest to the induced velocity.

There probably exist a simple solution to this one but...

How can I select the small cavity inlet to be the velocity inlet? The problem is that the small cavity inlet is touching the large extension cavity and FLUENT sees it as a contact, rather than velocity inlet.

I'd appreciate your help.

cfd.jpg

Thanks,
Thomas