code_saturne User's Forum

Posted: **Sun Aug 23, 2020 2:15 pm**

Hello,

I enabled the upwind scheme for LES (classical dynamic model) for velocity in the gui, but by running the calculation this error occurs:

Error in LES, while reading convection scheme parameters for variable Velocity
-----
Parameter: var_cal_opt.blencv (2nd order scheme share for convection) = 0
while its value must be in range [0.95 , 1 ].

Warning in LES, while reading convection scheme parameters for variable Velocity
-------
Parameter: var_cal_opt.blencv (2nd order scheme share for convection) = 0
while its recommended value is equal to 1 .

I think it's a bug in version 6.0.4.

Regards,
Mohammad

Posted: **Mon Aug 24, 2020 8:27 am**

Hello,

No, this does not seem to be a bug (except im the GUI, which should provide consistent limits). You could always remive the test in the source code, but since upwind is not recommended with LES for numerical reasons, you would need extra validation to check this is OK for your application.

Best regards,

Yvan

Posted: **Mon Aug 24, 2020 11:37 am**

Hello,

Thank you Yvan. I know it's not recommended for LES, but I mean while the solver gets error in calculation, so there should not be an option for activating it.
I just want it to test the upwind and did it by editing source files. This topic just created to report the problem in the GUI.

Regards,
Mohammad

code_saturne User's Forum

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