[Nek5000-users] Prandtl number in the heat transport equation

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

Hi Alex,

This would be common usage? -- Paul


    1.00000     P001: DENSITY
   -10000.      P002: VISCOS      <-- Re=10,000
   0.000000E+00 P003: BETAG
   0.000000E+00 P004: GTHETA
   0.000000E+00 P005: PGRADX
   0.000000E+00 P006:
    1.00000     P007: RHOCP
   -1000        P008: CONDUCT    <-- Pe = 1,000


On Wed, 9 Mar 2011, nek5000-users at lists.mcs.anl.gov wrote:

> Hi Paul,
>
> p8=1 or p8=-Pe?
>
> Maybe you meant p7=-Pe?.
>
> Thanks
>
>
> On Wed, 2011-03-09 at 10:42 -0600, nek5000-users at lists.mcs.anl.gov
> wrote:
>> Hi Alex,
>>
>> I typically set p1 and p8 to unity, then set p2 = -Re and p8= -Pe,
>> where Pe is the Peclet number and Pr is then Pe/Re.
>>
>> Paul
>>
>>
>> On Wed, 9 Mar 2011, nek5000-users at lists.mcs.anl.gov wrote:
>>
>>> Hi,
>>>
>>> How can I set the Pr number in the fully-developed channel flow with
>>> scalar transport (constant but different scalar values at the walls)?.
>>> This parameter is part of the coefficient of the diffusive term in the
>>> heat transport equation (1/Re/Pr).
>>>
>>> Should I use parameters 7 (RHOCP) and 8 (CONDUCT) in the rea file?.
>>>
>>> Thanks.
>>>
>>> --
>>> Alexandre Fabregat, PhD.
>>>
>>> Mail: afabrega at uottawa.ca
>>> Phone: 630 562-5800 (ext. 6293)
>>> Office: B207
>>>
>>> Mechanical Engineering Department
>>> University of Ottawa
>>> 161 Louis Pasteur, K1N6N5, Ottawa ON
>>>
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>
> -- 
> Alexandre Fabregat, PhD.
>
> Mail: afabrega at uottawa.ca
> Phone: 630 562-5800 (ext. 6293)
> Office: B207
>
> Mechanical Engineering Department
> University of Ottawa
> 161 Louis Pasteur, K1N6N5, Ottawa ON
>
> _______________________________________________
> Nek5000-users mailing list
> Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
>