Hello Yvan,
I do not want to change the subroutine, if i just use the GUI, can I achieve this function?
Thank you very much
Best Regards
XING Jian
Search found 55 matches
- Tue Jul 25, 2017 10:41 am
- Forum: code_saturne usage
- Topic: Pressure difference
- Replies: 5
- Views: 3587
- Thu Jul 20, 2017 9:33 am
- Forum: code_saturne usage
- Topic: Pressure difference
- Replies: 5
- Views: 3587
Re: Pressure difference
Hello Yvan,
Could you please explain more in detail, by using which function?
Thanks very much
Best Regards
XING Jian
Could you please explain more in detail, by using which function?
Thanks very much
Best Regards
XING Jian
- Tue Jul 18, 2017 2:39 pm
- Forum: code_saturne usage
- Topic: Pressure difference
- Replies: 5
- Views: 3587
Pressure difference
Hello,
I want to add a turbine in an exhaust pipe to enhance its exhaust performance, do not need to simulate a real turbine, because there is a the pressure difference, so how can achieve a pressure difference in CS?
Best Regards
XING Jian
I want to add a turbine in an exhaust pipe to enhance its exhaust performance, do not need to simulate a real turbine, because there is a the pressure difference, so how can achieve a pressure difference in CS?
Best Regards
XING Jian
- Thu Jul 06, 2017 8:41 pm
- Forum: code_saturne usage
- Topic: Problem about 'Residual', 'Drift', 'CFL number'.
- Replies: 15
- Views: 11014
Re: Problem about 'Residual', 'Drift', 'CFL number'.
Hello Yvan,
So how can I solve it? Actually I use CS5.0.1 now, maybe I try it with 5.0.0?
Best Regards
XING Jian
So how can I solve it? Actually I use CS5.0.1 now, maybe I try it with 5.0.0?
Best Regards
XING Jian
- Wed Jul 05, 2017 6:42 pm
- Forum: code_saturne usage
- Topic: ‘Restart’ results in divergence.
- Replies: 5
- Views: 3715
Re: ‘Restart’ results in divergence.
Hello Yvan, I did not change any settings, just in 'restart', I chose the 'checkpoint' in the directory that I calculated before. And I do not understand, you said that 'convergence tool' is more common under Windows, but I clicked it in 'GUI', there appear nothing, it does not have any reaction. So...
- Wed Jul 05, 2017 6:29 pm
- Forum: code_saturne usage
- Topic: Problem about 'Residual', 'Drift', 'CFL number'.
- Replies: 15
- Views: 11014
Re: Problem about 'Residual', 'Drift', 'CFL number'.
Thank you Yvan.
Here are 'XML', 'residual.csv' and 'listing'. Is my residual of the 'residual.csv' incorrect? They are should be 10E-03(or E-04;E-05) like 'Norm. Residual' in 'listing'?
And for the 'Courant Nb', 'Max CFL Nb', should I increase it?
Best Regards
XING Jian
Here are 'XML', 'residual.csv' and 'listing'. Is my residual of the 'residual.csv' incorrect? They are should be 10E-03(or E-04;E-05) like 'Norm. Residual' in 'listing'?
And for the 'Courant Nb', 'Max CFL Nb', should I increase it?
Best Regards
XING Jian
- Wed Jul 05, 2017 3:36 pm
- Forum: code_saturne usage
- Topic: ‘Restart’ results in divergence.
- Replies: 5
- Views: 3715
‘Restart’ results in divergence.
Hello, I stopped the calculation when it ran to 1000 steps, to observe the results, because that's a too big calculation, if there is an error I can adjust in time. It was very stable, but after the 'restart' there is a great fluctuation, like this: 8.png But I didn't change anything, I don't unders...
- Wed Jul 05, 2017 3:21 pm
- Forum: code_saturne usage
- Topic: Problem about 'Residual', 'Drift', 'CFL number'.
- Replies: 15
- Views: 11014
Re: Problem about 'Residual', 'Drift', 'CFL number'.
And for 'CFL number', it is 'Courant number'? CFL=U*Dt/Dx with U is with U is characteristic velocity, Dx is characteristic length. Fo=v*Dt/Dx^2 with v is viscosity, Dx is characteristic length. I want to obtain the maximum CFL and Fourier, I chose the fastest, and the mesh is the finest area. Dx=0....
- Wed Jul 05, 2017 2:55 pm
- Forum: code_saturne usage
- Topic: Problem about 'Residual', 'Drift', 'CFL number'.
- Replies: 15
- Views: 11014
Problem about 'Residual', 'Drift', 'CFL number'.
Hello, This time I simulate the total nozzle, all the boundary conditions are reasonable, and I calculated it with CS 5.0.1 with Windows. Here is my problem, because the new version has the file 'residual.csv' in the directory 'RESU', so I opened it with ParaVis: 4.PNG It seems very stable, then I z...
- Wed Jun 21, 2017 8:45 am
- Forum: code_saturne usage
- Topic: Convergence
- Replies: 21
- Views: 10699
Re: Convergence
Hello Quentin,
It's Norm. residual I think, but I recommend that you can download version 5 and install it, because it will generate a 'residual.csv' file automatically in the directory 'RESU' by calculating with version 5. And you could observe it with Paravis.
Best Regards
XING Jian
It's Norm. residual I think, but I recommend that you can download version 5 and install it, because it will generate a 'residual.csv' file automatically in the directory 'RESU' by calculating with version 5. And you could observe it with Paravis.
Best Regards
XING Jian