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code-mphi / ECOGEN

A CFD open source code dedicated to multiphase compressible flows
https://code-mphi.github.io/ECOGEN/
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Output data only for a part of the domain #41

Closed NiruBhai closed 1 year ago

NiruBhai commented 1 year ago

Dear all,

I am searching a way to extract the data of only a part of the computational domain (being large) and post-process. It seems that the "cuts" markup is for the same, but I am not able to understand how to implement it from the existing code. Could someone please help? Even extracting a plane section is okay.

Also, an unrelated question: Can ECOGEN be used to simulate bubble chains?

Regards, Niranjan

kevinschmidmayer commented 1 year ago

Dear Niranjan,

Indeed you should be able to use the 2D cut option to extract a section of your 3D domain. Although I'm almost never using this option, it should be quit easy to set up using the indication from the manualMainV5.xml file. I copy/paste it below:

b) 2D output cut Possibility to extract 2D output cuts from 3D computations. Define a plane using a vertex and normal vector. Cut results will be placed in the corresponding results folder under GNU format.

<cut2D>
  <vertex x="0.51" y="0.51" z="0.51"/>
  <vecNormal x="1" y="0" z="0"/>
</cut2D>

Please let us know if this works.

However, note that 3D data will still be written anyway. If you wish to not write the 3D data, let us know and we will tell you which lines to comment in the code (no option for this).

Regarding your unrelated question, can you elaborate on what you call "bubble chains"?

Best regards, Kevin

NiruBhai commented 1 year ago

Thank you @kevinschmidmayer ! I will check it out. It's fine regarding the bubble chain, it is manageable.

Regards, Niranjan