[Sakun]

Hi,

I am desperately need to know how to create my own turbulence model using existing models. i followed many different types of tutorials but file structure, names, and paths are totally changed in both OpenFOAM v9 and v8.

Any sort of a guidance appreciated ,

[olesen]

Could try with OpenFOAM-v2106, it retains the familiar structure of turbulence models.

[Sakun]

really appreciate your quick reply,

managed to install OpenFOAMv2106 but encountered with an error in third-party package

also i would like to introduce myself to you and ask some questions regarding OpenFOAMv2106. via email, LinkedIn or private message if you don't mind.
thank you,

best regards,

[s1291]

Originally Posted by Sakun

really appreciate your quick reply,

managed to install OpenFOAMv2106 but encountered with an error in third-party package

also i would like to introduce myself to you and ask some questions regarding OpenFOAMv2106. via email, LinkedIn or private message if you don't mind.
thank you,

best regards,

What distribution of Linux you're using?
There are pre-compiled versions of OpenFOAM that you can install directly using your package manager without the need to compile it from sources.

More information can be found on this page:
https://develop.openfoam.com/Develop...is/precompiled

[Sakun]

Originally Posted by s1291

What distribution of Linux you're using?
There are pre-compiled versions of OpenFOAM that you can install directly using your package manager without the need to compile it from sources.

More information can be found on this page:
https://develop.openfoam.com/Develop...is/precompiled

Hi,
thank you for your reply,

i am using Ubuntu 20.04 LTS version in virtual machine.

please can you tell me how and where can i get this, i am desperately trying to fix this and make my own turbulence model

[s1291]

The instructions on how to install OpenFOAM for multiple distributions are provided in the link above. If you read carefully you will find the instructions relevant to Ubuntu:

https://develop.openfoam.com/Develop.../debian#ubuntu

[Sakun]

Originally Posted by s1291

The instructions on how to install OpenFOAM for multiple distributions are provided in the link above. If you read carefully you will find the instructions relevant to Ubuntu:

https://develop.openfoam.com/Develop.../debian#ubuntu

ohhh i see, i will definitely try this,

this may sounds like stupid, but in this method, does this included with the paraview ?

[s1291]

Originally Posted by Sakun

ohhh i see, i will definitely try this,

this may sounds like stupid, but in this method, does this included with the paraview ?

You can install paraview as follows:

sudo apt update
sudo apt install paraview

On Ubuntu 20.04, that will install Paraview 5.7 (of course you can download the latest version of Paraview from their website and add it to PATH). If you want to use the command paraFoam, then you need to create an alias and add it to your ~/.bashrc file:

alias paraFoam='touch case.foam; paraview case.foam'

restart the terminal or simply source the bashrc file:

source ~/.bashrc

To visualize your case, type:

paraFoam

[Sakun]

Hi,


i got stuck from the step 3 just as shown in the attachment.

[s1291]

Originally Posted by Sakun

Hi,


i got stuck from the step 3 just as shown in the attachment.

That's not a command you supposed to run. It is an entry that will be added automatically if you run the previous commands.

So you need to run:

sudo apt install openfoam2106-default

[s1291]

Just out of curiosity because you've mentioned that you're running a virtual machine, what is the host OS? is it Windows 10?

If the answer is yes, you don't need a virtual machine to run Linux. Use Windows Subsystem for Linux (WSL). To view the GUI apps you need to install an X server such as VcXsrv.

With Windows 11, you can use WSLg to run Linux GUI apps out of the box.

[Sakun]

Originally Posted by s1291

You can install paraview as follows:

sudo apt update
sudo apt install paraview

On Ubuntu 20.04, that will install Paraview 5.7 (of course you can download the latest version of Paraview from their website and add it to PATH). If you want to use the command paraFoam, then you need to create an alias and add it to your ~/.bashrc file:

alias paraFoam='touch case.foam; paraview case.foam'

restart the terminal or simply source the bashrc file:

source ~/.bashrc

To visualize your case, type:

paraFoam

i get this enormous when launch paraview, as shown in the attachment



(yes my host is windows 10, i am using virtual machine cause i used to it pretty much. in the windows version, code system and flies are different right )

[s1291]

Hi,
I am afraid that will not work under VirtualBox (or at least it is hard to get it up and running). In fact, to get a "definitive" answer about this, your best option is to ask your question on Paraview support website:
https://discourse.paraview.org/c/paraview-support/7

Another solution is to use WSL as suggested above. You can find the detailed instructions on Microsoft website, or just search on Youtube-- I am sure you will get some step-by-step videos.

If you are able to enable WSL on your system and install a Linux distribution such as Ubuntu 20.04 you don't have to worry about your files being edited on Windows or Linux.

Moreover, you don't need to install a Linux version of Paraview anymore. Simply install a Windows version of Paraview from their website.

[Sakun]

Hi,

I thought that is because of my laptop drivers cause,it is 7 years old. hope university computers dont ask for admin rights to install any of above software.

[s1291]

To enable WSL, you must have administrator rights to do so.

[Sakun]

Originally Posted by s1291

To enable WSL, you must have administrator rights to do so.

jezzzzz....

I will give it try using my laptop, by any chance are you familiar with implementing turbulence models?
in future i have to run simulations using DES,DDES, and IDDES. so i am trying some tutorials at the moment but no luck at the moment. if i am succeeded i can even acknowledge in what ever the papers i produce in future.
also i am keep looking articles and sources to get to know how to make SA-DES in to case, i really appreciate if you can give me some hints or guidance regarding that ?