[Nek5000-users] Pressure Normalization

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

Hi Paul;

Yes, that's the answer I was looking for. Though I appreciate if you
point me out to the right direction, since I'd like to know:
1. Where the pressure constant is computed in the code (i.e. the
volumetric average).
2. whether there is an easy way to change it to the wall average...
As for these typical turbulent problems having a constant mean wall
pressure (integ{p}dA @ wall = 0) is more preferable than volumetric
average(integ{p}dv = 0). 

Many thanks,
Azad


On Thu, 2011-10-20 at 12:00 -0500,
nek5000-users-request at lists.mcs.anl.gov wrote:
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>    1. Boundary conditions for pressure (nek5000-users at lists.mcs.anl.gov)
>    2. Pressure Normalization (nek5000-users at lists.mcs.anl.gov)
>    3. Re: Pressure Normalization (nek5000-users at lists.mcs.anl.gov)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 19 Oct 2011 16:22:18 -0400
> From: nek5000-users at lists.mcs.anl.gov
> Subject: [Nek5000-users] Boundary conditions for pressure
> To: nek5000-users at lists.mcs.anl.gov
> Message-ID: <1319055738.15579.36.camel at menorca.uottawa.ca>
> Content-Type: text/plain; charset="UTF-8"
> 
> Dear Nek users,
> 
> according to the information provided, for the Pn-Pn case using a splitting temporal discretization,
> the boundary conditions for the pressure are computed chosen to ensure div.U=0.
> This involves addition of an appropriate inhomogeneity
> that cancels the line integral of the divergence.
> 
> How is this inhomogeneity computed?. Could you provide more details?.
> 
> Thanks.
>