[Nek5000-users] Periodic BC on non-parallel boundaries

[nek5000-users at lists.mcs.anl.gov]

Hi David,

How much of a circular arc do you need?

Is there a compelling reason to not use a full arc?

Paul


On Mon, 10 Oct 2011, nek5000-users at lists.mcs.anl.gov wrote:

> Hi Stefan,
>
> I tried the cyclic BC with Pn/Pn-2, but it didn't work. Visualizing the results, the velocities do not seem to be properly matched, and the fields quickly blow up. To make sure I was doing the cyclic BC right, I changed to no-slip and tried it with Pn/Pn, and that worked, so I think Paul may have been right about cyclic BC no working with Pn/Pn-2. Do you think there is a way around this? I unfortunately need the stress-free boundaries or something similar.
>
> Best,
>
> David
>
>
>
>
>
> On Oct 10, 2011, at 2:20 PM, nek5000-users at lists.mcs.anl.gov wrote:
>
>> Hmm, just had a look at the code. It looks to me that it might work
>> out of the box. Why don't you give it a shot.
>>
>> Cheers
>> Sefan
>>
>