[Nek5000-users] Sub-grid turbulent kinetic energy

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

I'm currently using the hpfrt model but am planning to try out a couple (such as dynamic Smagorinsky) in the future.  Cheers, Daniel

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From: Nek5000-users <nek5000-users-bounces at lists.mcs.anl.gov> on behalf of nek5000-users-request at lists.mcs.anl.gov <nek5000-users-request at lists.mcs.anl.gov>
Sent: 10 October 2018 18:00
To: nek5000-users at lists.mcs.anl.gov
Subject: Nek5000-users Digest, Vol 116, Issue 6

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Today's Topics:

   1. Sub-grid turbulent kinetic energy
      (nek5000-users at lists.mcs.anl.gov)
   2. Re: Sub-grid turbulent kinetic energy
      (nek5000-users at lists.mcs.anl.gov)


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Message: 1
Date: Wed, 10 Oct 2018 14:39:47 +0000
From: nek5000-users at lists.mcs.anl.gov
To: "nek5000-users at lists.mcs.anl.gov"
        <nek5000-users at lists.mcs.anl.gov>
Subject: [Nek5000-users] Sub-grid turbulent kinetic energy
Message-ID:
        <mailman.12319.1539182408.86639.nek5000-users at lists.mcs.anl.gov>
Content-Type: text/plain; charset="iso-8859-1"

Hi,


I'm trying to compute the efficacy of my LES and would like to do this by considering the ratio of turbulence kinetic energy both on the grid and sub-grid.  Is there an option within NEK (maybe in .par) to include the amount of sub-grid TKE as an output from the simulation itself, so that I can directly compare it to the computed on-grid TKE?


Cheers,


Daniel Ward
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Message: 2
Date: Wed, 10 Oct 2018 17:27:29 +0200
From: nek5000-users at lists.mcs.anl.gov
To: nek5000-users at lists.mcs.anl.gov,    "nek5000-users at lists.mcs.anl.gov"
        <nek5000-users at lists.mcs.anl.gov>
Subject: Re: [Nek5000-users] Sub-grid turbulent kinetic energy
Message-ID:
        <mailman.12339.1539187154.86639.nek5000-users at lists.mcs.anl.gov>
Content-Type: text/plain; charset="utf-8"

Hi, what SGS model are you using? Just the filtering?
Philipp

On October 10, 2018 4:39:47 PM GMT+02:00, nek5000-users at lists.mcs.anl.gov wrote:
>Hi,
>
>
>I'm trying to compute the efficacy of my LES and would like to do this
>by considering the ratio of turbulence kinetic energy both on the grid
>and sub-grid.  Is there an option within NEK (maybe in .par) to include
>the amount of sub-grid TKE as an output from the simulation itself, so
>that I can directly compare it to the computed on-grid TKE?
>
>
>Cheers,
>
>
>Daniel Ward

--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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