code_saturne User's Forum

Hello,

Thanks a lot for the explanation.

Regard,
Hong Duc

Hello, I have a newbie question about the hydraulic diameter that we choose for the turbulence parameter of the Inlet. I'm using CSv4.0 to simulate a gas flow exiting a pipeline into the air. I use k-epsilon model for the gas turbulence. I can give the initial value for the k and epsilon or I can al...

Hello Yvan,

Thanks for the quick answer. I will take a look at it.

Best regard,
LE Hong Duc

Hello, I'm using Code_Saturne v4.0 (I cannot switch to 5.0 because all my development was in lagrangian part of v4.0). I'm developping the modelling of the collision between particles. To validate my development, I need to create a box with periodic boundary conditions for particles for 6 faces of t...

Hello Yvan, I found my "bug". I have to set first order of numerical scheme of particle dispersion model for 2-way coupling. (nordre = 1 in uslag1.f90). I didn't look closer to see what is the probleme with nordre = 2 (maybe some probleme in predvv.f90 for source terme (ligne 16510))... bu...

Re,

Thanks very much! I'll take a look at it.

Regard,
LE Hong Duc

Hello Yvan,

I'm using CSv4.0.3. It would be nice if you have the validation test case of this version. If not, the validation of another version closest to v4.0.3 could be fine, I will try the same validation test case on v4.0.3.

Thanks in advance,
Best regard,
LE Hong Duc

Hello Yvan, Thanks for the reply. I'm using only basic Lagrangian options. Turbulence model is "k-epsilon". The options of 2-way coupling is: nstits = 1, ltsdyn = 1. I tested the integration order of SDE (nordre = 1 or 2), and also the activation or not the dispersion model (idistu = 0 or ...

Hello all, I would like to use two-way coupling of Lagrangian particle in Code_Saturne 4.0.3 but I have an unrealistic value of my results (about fluid velocity). I'm looking for some information about two way coupling of CS and I found a topic about it a year ago: http://code-saturne.org/forum/view...

Hello Yvan,

Thanks you for your reply. I'll take a closer look at this point.

Regard,
Hong Duc