Modele V2F

[oguerri]

I have some problems with the V2F model on code_saturne2.3.1
1. If I set for the initial conditions values different from zero, the calculations diverge after 2 or 3 iterations and y+ values ​​are well below 1 but warnings are displayed at the end of calculations
2. With zero velocity as Initial Conditions, divergence occurs after about 170 itérations. For F and phi, I have chosen the BI-CGSTAB solver (divergence occurs with Jacobi)

Computations are running with code_saturne2.2.1 with this model with no problems.

Other question: Could you let me know which version of the V2F model is installed on code_saturne2.2 and code_saturne2.3. Is that one of the variant developped in these two papers:
(i) Billard and Laurence, Int. J. of Heat and Fluid Flow, 33 (2012), pp. 45-58
(ii) Laurance et al., Flow Turbulence and Combustion, 73 (2004) pp. 169-185

Many thanks

[Jacques Fontaine]

Hello,

In 2.3v there are both v2f versions:
1) iturb = 50 (Laurence)
2) iturb = 51 (Billard) (not available from the GUI)

In 2.2v only iturb = 50 is available.

This not explain the difference between 2.2v and 2.3v; could you post the user subroutines and .xml used in your 2.3v computation ?

By the way, the latest version is 2.3.2v and some major bugs have been corrected since 2.3.1v.

Regards,
JF

[oguerri]

Dear Jacques,
Please find enclosed the requested files.
Thanks you very much for you help
Regards