[JinZhiyi]

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

[taxalian]

Originally Posted by JinZhiyi

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

Hi JinZhiyi,
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.

[JinZhiyi]

Originally Posted by taxalian

Hi JinZhiyi,
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.

Dear Taxalian：

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

[taxalian]

Originally Posted by JinZhiyi

Dear Taxalian：

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

Dear Jin,

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.

[JinZhiyi]

Originally Posted by taxalian

Dear Jin,

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.

Thank you Taxalian, did you forget to attach the renewed configure file, I can't see the attached file in your last reply.

Kind regards

Jin

[taxalian]

Originally Posted by JinZhiyi

Thank you Taxalian, did you forget to attach the renewed configure file, I can't see the attached file in your last reply.

Kind regards

Jin

Hi Jin,

there you go, see the attached file.

Best regards,

Taxalian

[JinZhiyi]

Originally Posted by taxalian

Hi Jin,

there you go, see the attached file.

Best regards,

Taxalian

Hi Taxalian, now it works well, despite the result torque number is still far away from the experimental data, but I will try to tackle this problem, and figure out the right way.


Thank you so much again!


Best regards


Jin

[taxalian]

Originally Posted by JinZhiyi

Hi Taxalian, now it works well, despite the result torque number is still far away from the experimental data, but I will try to tackle this problem, and figure out the right way.


Thank you so much again!


Best regards


Jin

Hi Jin,
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