Hi Mohsen, mokhlesam! Thank you for your kind help. That is what I missed! Kind regards syavash On Tue, Apr 4, 2023 at 11:34 PM Mohsen Lahooti < Mohsen.Lahooti@newcastle.ac.uk> wrote:

Hi Syavash,

I assume you enclosed the filter in a filters tag as below, right?

If you have other filters, all goes inside <FILTERS> …. </FILTERS> tags too. Eg. If you have FilterAeroforces too, all will looks like:

<FILTERS>

<FILTER TYPE="ReynoldsStresses"> <PARAM NAME="OutputFile">step95_4_averageField.fld</PARAM> <PARAM NAME="OutputFrequency">10</PARAM> <PARAM NAME="SampleFrequency"> 1 </PARAM> </FILTER>

<FILTER TYPE=”AeroForces”>

<PARAM NAME=”OutputFile”>forces</PARAM>

<PARAM NAME="OutputFrequency">10</PARAM> <PARAM NAME="SampleFrequency"> 1 </PARAM> </FILTER>

</FILTERS>

Hope this helps,

Cheers,

Mohsen

*From: *nektar-users-bounces@imperial.ac.uk < nektar-users-bounces@imperial.ac.uk> on behalf of Ehsan Asgari < eh.asgari@gmail.com> *Date: *Tuesday, 4 April 2023 at 19:53 *To: *nektar-users@imperial.ac.uk <nektar-users@imperial.ac.uk> *Subject: *[Nektar-users] Reynolds stress field not written

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Dear All,

I have added the ReynoldsStresses filter to the main Nektar block in my session file:

<FILTER TYPE="ReynoldsStresses"> <PARAM NAME="OutputFile">step95_4_averageField.fld</PARAM> <PARAM NAME="OutputFrequency">10</PARAM> <PARAM NAME="SampleFrequency"> 1 </PARAM> </FILTER>

I am doing parallel simulations using 128 cores.

However, I get no Reynolds stress fields in my directory. I don't get any errors or warnings either.

Am I missing something?

Kind regards

syavash

Thanks Mohsen, This is very helpful. I found out the learning materials are not unified and as you pointed out it took me a while to setup my own case. I will certainly have a look at those you introduced. Kind regards syavash On Wed, Apr 5, 2023, 00:48 Mohsen Lahooti <Mohsen.Lahooti@newcastle.ac.uk> wrote:

Great, glad we found the problem.

Just in case, we have several tutorials here ( https://www.nektar.info/notebooks/) that might be helpful and save you times. Unfortunately, for some technical issues we cannot try them on web in Jupyter lab env but the explanations are detailed. I would look at this one in particular ( https://www.nektar.info/notebooks//tutorials/basics-incns-solver/ <https://www.nektar.info/notebooks/tutorials/basics-incns-solver/>)

There are tutorials in other formats too ( https://www.nektar.info/getting-started/tutorials/) which are basically different from the ones in notebooks.

Finally, in nektar++/solvers/IncNavierStokesSolver/Tests you can find many simple tests where sometimes could be helpful. Such tests are available for other solvers too

Eraadat,

Mohsen

*From: *Ehsan Asgari <eh.asgari@gmail.com> *Date: *Tuesday, 4 April 2023 at 21:42 *To: *Mohsen Lahooti <Mohsen.Lahooti@newcastle.ac.uk> *Cc: *nektar-users@imperial.ac.uk <nektar-users@imperial.ac.uk> *Subject: *Re: [Nektar-users] Reynolds stress field not written

Hi Mohsen, mokhlesam!

Thank you for your kind help. That is what I missed!

Kind regards

syavash

On Tue, Apr 4, 2023 at 11:34 PM Mohsen Lahooti < Mohsen.Lahooti@newcastle.ac.uk> wrote:

Hi Syavash,

I assume you enclosed the filter in a filters tag as below, right?

If you have other filters, all goes inside <FILTERS> …. </FILTERS> tags too. Eg. If you have FilterAeroforces too, all will looks like:

<FILTERS>

<FILTER TYPE="ReynoldsStresses"> <PARAM NAME="OutputFile">step95_4_averageField.fld</PARAM> <PARAM NAME="OutputFrequency">10</PARAM> <PARAM NAME="SampleFrequency"> 1 </PARAM> </FILTER>

<FILTER TYPE=”AeroForces”>

<PARAM NAME=”OutputFile”>forces</PARAM>

<PARAM NAME="OutputFrequency">10</PARAM> <PARAM NAME="SampleFrequency"> 1 </PARAM> </FILTER>

</FILTERS>

Hope this helps,

Cheers,

Mohsen

*From: *nektar-users-bounces@imperial.ac.uk < nektar-users-bounces@imperial.ac.uk> on behalf of Ehsan Asgari < eh.asgari@gmail.com> *Date: *Tuesday, 4 April 2023 at 19:53 *To: *nektar-users@imperial.ac.uk <nektar-users@imperial.ac.uk> *Subject: *[Nektar-users] Reynolds stress field not written

⚠ External sender. Take care when opening links or attachments. Do not provide your login details.

This email from eh.asgari@gmail.com originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list <https://spam.ic.ac.uk/SpamConsole/Senders.aspx> to disable email stamping for this address.

Dear All,

I have added the ReynoldsStresses filter to the main Nektar block in my session file:

<FILTER TYPE="ReynoldsStresses"> <PARAM NAME="OutputFile">step95_4_averageField.fld</PARAM> <PARAM NAME="OutputFrequency">10</PARAM> <PARAM NAME="SampleFrequency"> 1 </PARAM> </FILTER>

I am doing parallel simulations using 128 cores.

However, I get no Reynolds stress fields in my directory. I don't get any errors or warnings either.

Am I missing something?

Kind regards

syavash