OpenFOAM::programming::customisedRASmodel::update old code for OF1812+ version
 

Hello, community, :)
1. I have to adopt a RANS model called "Antti Hellsten model, 2005" into OpenFOAM.
It is basically a combination of Menter k-w (SST or BSL) model with an EARSM (Wallin and Johanson) formula (instead of the Boussinesq assumption) for the Raynolds stress.
A few old versions of this code are available on the internet but they were modelled in old versions of OF (three different codes in three different OF versions- v1.7, v2.3.1, and v3.4).
Right now, I am using v1812+.
2. I am willing to pay for your work.
Thank you.

1. Link to the "Antti Hellsten model, 2005":
https://drive.google.com/file/d/1EJ7...ew?usp=sharing
2. Link to different EARSM models available on the internet:
https://drive.google.com/drive/folde...7v?usp=sharing

Update
 

The Antti Hellsten model is a combination of <Menter 2003 kOmegaSST model> and <Wallin&Johanson EARSM model for stress-strain relation>.

I am still looking for a free-lancer/.

thanks.

How about wall functions for EARSM
 

Hi Purn,


Thanks very much for sharing EARSM.


I also tried to program it and I found I got some weird result when my mesh Y+ is not 1.



I am wonder if we need to change some terms in wall function link omegaWallFunction, nutUSpaldingWallFunction and even nutkRoughWallFunction?


Cheers

Hello, FF,

Which version of OF are you using?

Someone helped me on a Facebook group to find HellstenEARSM for OF1812+. Check the link below:
https://github.com/furstj/myTurbulen...enceModels/RAS

And, sorry, I am not familiar with the functions you have written in your post. I used the EARSM model from Dr Furst (owner of the above GitHub library) and then added a few functions required for building a transition model (Kubacki-Dick transition model) which is topic of my project.

Hope it helps.
Thanks.