CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > CFD Freelancers

simulation of an EARSM model over flat plates and compressor blade

Register Blogs Community New Posts Updated Threads Search

Like Tree3Likes
  • 1 Post By charles_29
  • 1 Post By syavash
  • 1 Post By syavash

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 28, 2019, 19:27
Default simulation of an EARSM model over flat plates and compressor blade (OpenFOAM)
  #1
New Member
 
Purn Prakash
Join Date: Nov 2018
Posts: 27
Blog Entries: 1
Rep Power: 8
purnp2 is on a distinguished road
Hello,
I am a student and my task is to run simulations over three flat plates (t3a, t3b, t3am) and a compressor blade cascade (V103A with NACA 65 profile) with a self-customized EARSM model coupled with an algebraic transition model.
(The EARSM model will also have a laminar-to-turbulent transition model added in it).
I have already done 90% of the task: geometry, code, boundary conditions, simulation, and post-processing for the flat-plates. But, I think the remaining 10% of work will take other millennia to finish if I keep working by myself.
I will need relatively more help in simulating compressor blade cascade.
Now, there are some errors in them and I am looking for some expert's advice for removing those errors. I am running out of time so I am in a little hurry.
I am attaching a few graphs which are results of what I have done till now.
1, 2. turbulent intensity decay graph and friction coefficient graph for t3a case.
3, 4. for t3b case..... I'll update later
5, 6. for t3am case.......I'll update later
7, 8, 9, 10. for two sides of the compressor blade... I'll add here later.
Thank you, please mail me on 786purn at gmail dot com 786purn@gmail.com
Images should be visible below but they are not. :| So posting their URL again:

1: https://drive.google.com/open?id=1rj...8l2H3DSEHnG0Z3
2: https://drive.google.com/open?id=1z9...XeGh19q0PXMnAN



Last edited by purnp2; September 25, 2019 at 06:10. Reason: Adding more information
purnp2 is offline   Reply With Quote

Old   August 29, 2019, 04:15
Default Help
  #2
New Member
 
charles leo
Join Date: Aug 2019
Posts: 3
Rep Power: 7
charles_29 is on a distinguished road
Hello

i can surely assist on the same.
Will share the mail with you soon

thanks

charles
purnp2 likes this.
charles_29 is offline   Reply With Quote

Old   September 3, 2019, 12:26
Default
  #3
New Member
 
Purn Prakash
Join Date: Nov 2018
Posts: 27
Blog Entries: 1
Rep Power: 8
purnp2 is on a distinguished road
Still looking for a tutor.
purnp2 is offline   Reply With Quote

Old   September 4, 2019, 14:37
Default
  #4
Senior Member
 
Ehsan Asgari
Join Date: Apr 2010
Posts: 473
Rep Power: 18
syavash is on a distinguished road
Quote:
Originally Posted by purnp2 View Post
Still looking for a tutor.
Hi,

What is your code? Please be more specific about the problem.

Syavash
purnp2 likes this.
syavash is offline   Reply With Quote

Old   September 4, 2019, 18:13
Default
  #5
New Member
 
Purn Prakash
Join Date: Nov 2018
Posts: 27
Blog Entries: 1
Rep Power: 8
purnp2 is on a distinguished road
Code:
https://drive.google.com/open?id=1VIowq9VVDj3m8s1fbwP3NQHfu_RRKhnu
https://drive.google.com/open?id=1VI...P3NQHfu_RRKhnu

Hello, sir.
I have to couple an EARSM model (with an extra anisotropic term ( a_ij ) in Reynolds Stress Tensor) with an algebraic transition model (Kubacki-Dick model). I have already prepared the code. See the .C and .H file of the model named EARSM_Trans_kd attached in the mail.
Using this model I have to prove the usefulness of the extra anisotropic term ( a_ij ) used in the EARSM model by comparing the result of this model with the result of another model which doesn't have this anisotropic term in it.
I'll be running the above two different models on three flat plates (t3a, t3b, t3a minus) and a compressor blade cascade ( v103A with NACA 65 profile). I have already run the cases on all the flat plates but I'll run the cases on compressor blade cascade within this week. Please check the turbulent intensity decay graph and friction coefficient graph for the first flat plate ( t3a ) case:: compare_Turb_Int.png and compare_C_f_.png.
I am using the first model described in the attached publication "Holman_Furst_Model_2019_Art......" and the second model published in the file "thesis_Tykocki.pdf".
All the files are in the Google Drive link I have attached on the top.
This is the birds-eye-view of what I am doing. I think still it is hard to completely understand what I am doing. After you look at these sources then we can contact on skype and do video chat where I can screen-share with you and explain what I have already done and where I'll need your help.
Please text me in the inbox for sharing the contact of skype/messenger/Duo.

Regards
Purn
purnp2 is offline   Reply With Quote

Old   September 5, 2019, 08:55
Default
  #6
Senior Member
 
Ehsan Asgari
Join Date: Apr 2010
Posts: 473
Rep Power: 18
syavash is on a distinguished road
Quote:
Originally Posted by purnp2 View Post
Code:
https://drive.google.com/open?id=1VIowq9VVDj3m8s1fbwP3NQHfu_RRKhnu
https://drive.google.com/open?id=1VI...P3NQHfu_RRKhnu

Hello, sir.
I have to couple an EARSM model (with an extra anisotropic term ( a_ij ) in Reynolds Stress Tensor) with an algebraic transition model (Kubacki-Dick model). I have already prepared the code. See the .C and .H file of the model named EARSM_Trans_kd attached in the mail.
Using this model I have to prove the usefulness of the extra anisotropic term ( a_ij ) used in the EARSM model by comparing the result of this model with the result of another model which doesn't have this anisotropic term in it.
I'll be running the above two different models on three flat plates (t3a, t3b, t3a minus) and a compressor blade cascade ( v103A with NACA 65 profile). I have already run the cases on all the flat plates but I'll run the cases on compressor blade cascade within this week. Please check the turbulent intensity decay graph and friction coefficient graph for the first flat plate ( t3a ) case:: compare_Turb_Int.png and compare_C_f_.png.
I am using the first model described in the attached publication "Holman_Furst_Model_2019_Art......" and the second model published in the file "thesis_Tykocki.pdf".
All the files are in the Google Drive link I have attached on the top.
This is the birds-eye-view of what I am doing. I think still it is hard to completely understand what I am doing. After you look at these sources then we can contact on skype and do video chat where I can screen-share with you and explain what I have already done and where I'll need your help.
Please text me in the inbox for sharing the contact of skype/messenger/Duo.

Regards
Purn
I checked the materials you provided. You intend to use OpenFOAM as your solver. Please PM me if you want to discuss the problems and the terms.

Regards,
Syavash
purnp2 likes this.
syavash is offline   Reply With Quote

Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 15:00.