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

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Old   April 27, 2019, 12:23
Default OpenFOAM::programming::customisedRASmodel::update old code for OF1812+ version
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Purn Prakash
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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

Last edited by purnp2; May 12, 2019 at 19:27.
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Old   May 19, 2019, 18:56
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Purn Prakash
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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.
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Old   May 28, 2019, 06:37
Default How about wall functions for EARSM
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ff
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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
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Old   May 28, 2019, 12:13
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Purn Prakash
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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.
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