[Nek5000-users] Conjugate heat transfer with complex properties

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

Awesome, thank you Paul.


Adam


On 08/03/2017 11:19 AM, nek5000-users at lists.mcs.anl.gov wrote:
>
>
> Yes - that should work.
>
>
> Set ifuservp = .true. and then, in uservp()
>
>
>       if (ifield.eq.1) then ! fluid properties
>
>             udiff = param(2)
>
>             utrans = param(1)
>
>       else                            ! thermal properties
>
>             udiff = your diffusivity
>
>             utrans = your rhoCp
>
>       endif
>
>
>
> ------------------------------------------------------------------------
> *From:* Nek5000-users <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:* Thursday, August 3, 2017 10:13:03 AM
> *To:* nek5000-users at lists.mcs.anl.gov
> *Subject:* Re: [Nek5000-users] Conjugate heat transfer with complex 
> properties
>
> Hi Paul,
>
>
> Yep, there's some melting going on.  There's a porous structure that 
> does not melt and wax trapped in the porous structure.  The wax melts 
> and re-solidifies.  There really nothing complex happening with the 
> geometry.  A static mesh should do the job.  The material properties 
> are the challenge.  I think I could model the material behavior as 
> having a non-linear specific heat capacity as a function of temperature.
>
>
> Adam
>
>
> On 08/03/2017 09:30 AM, nek5000-users at lists.mcs.anl.gov wrote:
>>
>>
>> Hi Adam,
>>
>>
>> Can you be more specific?  Is it melting?
>>
>>
>> In principle, it should be possible as that was one of the original 
>> applications for Nek5000.  In practice, however, I would rate that as 
>> still a research area (at least from the Nek perspective).  I guess 
>> that melting is much easier than freezing, however.
>>
>>
>> Paul
>>
>>
>> ------------------------------------------------------------------------
>> *From:* Nek5000-users <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:* Thursday, August 3, 2017 8:29:09 AM
>> *To:* nek5000-users at lists.mcs.anl.gov
>> *Subject:* [Nek5000-users] Conjugate heat transfer with complex 
>> properties
>> Hello,
>>
>> I have a conjugate heat transfer problem where the solid material is a
>> composite that undergoes a phase transformation.  Is it possible to
>> model a material like this in Nek5000?
>>
>> Thanks,
>>
>> Adam Lange
>>
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>
>
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