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Modify from Euler to NS, Do me a favor please |
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March 18, 2014, 05:27 |
Modify from Euler to NS, Do me a favor please
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#1 |
New Member
JinZhiyi
Join Date: Feb 2014
Posts: 14
Rep Power: 12 |
Hi everyone,
I am using SU2 to simulate a standard aero-model rotating blade, the Euler simulation runs well, the simulated lifting force is only about 5% to the experimental data. But I am really new to su2, i can not set up the configure file for N-S simulation . Can any nice guy do me a favor, modify the configure file please, really appreciate. By the Way: the diameter of the blade is 30cm, it rotates at the angular speed of 3000RPM, so it should be low-Reynolds. Also if you need grid file(in pointwise formate) or SU2 formate, please leave your e-mailbox . Jin |
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March 20, 2014, 18:52 |
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#2 | |
Senior Member
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Quote:
See the modified file according to your specified operating conditions. Have a look at the comments related to Navier-Stokes settings. I would like to have a look at the pointwise grid, if possible send me the link via private message or share it in the forum. Have fun and in case of problem just write on the forum. Good luck. |
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March 23, 2014, 05:47 |
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#3 | |
New Member
JinZhiyi
Join Date: Feb 2014
Posts: 14
Rep Power: 12 |
Quote:
Thanks for your modification, I have uploaded my grid in Pointwise format, and geometry model in IGS format to ONEDRIVE. And I encounter an error when i ran your cfg file with my grid, please check it. By the way, I made a mistake last time about the diameter of rotor, it should be 38cm, so the Reynolds number should be approximately 1.6E6. https://onedrive.live.com/redir?resi...1C35D62C%21107 Thanks again Jin |
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March 23, 2014, 16:09 |
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#4 | |
Senior Member
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Quote:
Thanks for providing the grid too. I ran your test case with your config file, the code complaints about the convective scheme that is not implemented. So i tested it with my standard SU2 v3.0 Eagle config file. The simulation runs without any problem except i did some modifications in the flow settings like the reference length, origin for moment based on the rotor diameter and least_square numerical scheme for gradients than the green_gauss. See the attached config file for further reference and adjust the flow parameters accordingly to your requirements. Good luck. |
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March 23, 2014, 23:12 |
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#5 | |
New Member
JinZhiyi
Join Date: Feb 2014
Posts: 14
Rep Power: 12 |
Quote:
Kind regards Jin |
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March 24, 2014, 11:09 |
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#6 | |
Senior Member
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Quote:
there you go, see the attached file. Best regards, Taxalian |
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March 27, 2014, 01:19 |
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#7 | |
New Member
JinZhiyi
Join Date: Feb 2014
Posts: 14
Rep Power: 12 |
Quote:
Thank you so much again! Best regards Jin |
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March 27, 2014, 12:35 |
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#8 | |
Senior Member
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Quote:
Good to know that its working, wish you good luck. In order to improve the torque number you can try a finer mesh + turbulence model effect i.e SST turbulence model. Regards, Taxalian |
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