[Nek5000-users] constant average velocity at inlet with periodic boundary conditions

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

Also, the heat equation is only solved in the fluid domain. I am only interested in the turbulent flow without heat equation for now.

Marco
> On Sep 6, 2016, at 10:44 AM, nek5000-users at lists.mcs.anl.gov wrote:
> 
> Paul,
> 
> there is no heat added to the flow but I do have IFHEAT set to true in the rea file. The temperature profile does not vary though.
> 
> Marco
>> On Sep 6, 2016, at 10:19 AM, nek5000-users at lists.mcs.anl.gov wrote:
>> 
>> Hi Marco,
>> 
>> Does this have conjugate heat transfer ?
>> 
>> Paul
>> 
>> ________________________________________
>> From: nek5000-users-bounces at lists.mcs.anl.gov [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
>> Sent: Tuesday, September 06, 2016 8:39 AM
>> To: nek5000-users at lists.mcs.anl.gov
>> Subject: [Nek5000-users] constant average velocity at inlet with periodic       boundary conditions
>> 
>> Dear nek users,
>> 
>> I am simulating the flow in a 7 pin bundle mesh with periodic boundary conditions in Nek5000 and set the parameters p054 and p055 to -3 and 1, respectively. With these settings, the average velocity should be 1 in the geometry. This is however not what I am seeing; the maximum velocity is around 0.32.
>> 
>> I used the same set up for a 3-D pipe and the numerical solution behaves as expected.
>> 
>> Does anybody has details on how the fix mass flow rate/volumetric velocity are enforced in Nek5000?
>> 
>> Thanks,
>> Marco
>> 
>> 
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