Adapting a tutorial case made in dev version in V10

nialloneill · August 9, 2023, 05:35

Hello, I have a quick question that might hopefully reduce the amount of time I end up spending on a tutorial case. In the "openFOAM training" by CFD support document (which by the way is an extremely helpful resource) there is a test case of a wind turbine. It is written for the dev version and actually explicitly says in the .allrun script to use the dev version with it. I currently have v10 installed, but was planning on just figuring out what the main syntax differences were and trying to get it to work with that.

The case uses snappyHexMesh and pimpleFOAM as a solver

My question is whether this act of adapting a case to a different version is relatively straightforward, or would I be better off just downloading the dev verison? Bearing in mind that my main goal is actually just learning how the whole things works so having to understand the syntax to the point where I can adjust it to v10 may be useful in itself

Thanks.

Yann · August 9, 2023, 06:01

Hello,

For your peace of mind, the recommendation would be to install the version corresponding to the tutorial, so you can get familiar with it before thinking about adapting it to another version. Even if you aim to adapt it later, at least you will have a healthy baseline case to work with, and to compare to your modified case.

You can install multiple OpenFOAM versions on your system, so it's pretty easy to install the ones you need, and just switch from one version to another when you need to.

The problem here is that dev is the development version, which is constantly evolving. If the tutorial you are running is 2 years old and you install the dev version now, for sure you will have to adapt the case.

Regards,
Yann

nialloneill · August 13, 2023, 10:55

I think the particular tutorial is from 2017, so I might just try and figure out the syntax differences with v10 as I am currently using, thanks

Yann · August 14, 2023, 05:57

There were major changes in the OpenFOAM foundation branch since 2017. If you are relatively sure the tutorial is from 2017, you will probably have less trouble trying to run it on a version corresponding to this time period, which would be OpenFOAM 4.1 or 5.0 (https://openfoam.org/download/history/)

Of course your can adapt it to OpenFOAM 10 but be ready to have to deal with filenames and syntax changes in multiple places.

Have fun!
Yann

August 9, 2023, 05:35	Adapting a tutorial case made in dev version in V10	#1
nialloneill New Member Niall O'Neill Join Date: Feb 2023 Posts: 21 Rep Power: 3	Hello, I have a quick question that might hopefully reduce the amount of time I end up spending on a tutorial case. In the "openFOAM training" by CFD support document (which by the way is an extremely helpful resource) there is a test case of a wind turbine. It is written for the dev version and actually explicitly says in the .allrun script to use the dev version with it. I currently have v10 installed, but was planning on just figuring out what the main syntax differences were and trying to get it to work with that. The case uses snappyHexMesh and pimpleFOAM as a solver My question is whether this act of adapting a case to a different version is relatively straightforward, or would I be better off just downloading the dev verison? Bearing in mind that my main goal is actually just learning how the whole things works so having to understand the syntax to the point where I can adjust it to v10 may be useful in itself Thanks.

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August 9, 2023, 06:01		#2
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,085 Rep Power: 26	Hello, For your peace of mind, the recommendation would be to install the version corresponding to the tutorial, so you can get familiar with it before thinking about adapting it to another version. Even if you aim to adapt it later, at least you will have a healthy baseline case to work with, and to compare to your modified case. You can install multiple OpenFOAM versions on your system, so it's pretty easy to install the ones you need, and just switch from one version to another when you need to. The problem here is that dev is the development version, which is constantly evolving. If the tutorial you are running is 2 years old and you install the dev version now, for sure you will have to adapt the case. Regards, Yann

August 13, 2023, 10:55		#3
nialloneill New Member Niall O'Neill Join Date: Feb 2023 Posts: 21 Rep Power: 3	I think the particular tutorial is from 2017, so I might just try and figure out the syntax differences with v10 as I am currently using, thanks

August 14, 2023, 05:57		#4
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,085 Rep Power: 26	There were major changes in the OpenFOAM foundation branch since 2017. If you are relatively sure the tutorial is from 2017, you will probably have less trouble trying to run it on a version corresponding to this time period, which would be OpenFOAM 4.1 or 5.0 (https://openfoam.org/download/history/) Of course your can adapt it to OpenFOAM 10 but be ready to have to deal with filenames and syntax changes in multiple places. Have fun! Yann