code_saturne User's Forum

Dear all,

I am setting up a steady simulation of a model tidal turbine in a tank.
My computational domain consists of two part: rotating cylindrical domain including a turbine + a rectangular cross section tank (stationary part). A non-conformal interface exists between these two parts.

I have chosen a frozen rotor with explicit coupling in the version 5.2. Regarding this: What should a select in face mapping?
(faces sharing the interface between the two computational domain aforementioned?)

If I want to run a test simulation ( suppose 10 iterations). What options should I select, as a support for a steady simulation, on Numerical parameters? (coherence between time step and iteration, output control etc..)

Regards,

FA

Hello,

Yes, you should select the faces on each side of the rotor/stator interface (just like for joining).

As regards the time step, a fixed time step is probably safer, but starting with a variable/local time step might accelerate the initial convergence, so you can always try it.

In any case, output control considers iteration count only, and does not worry about whether the computation should reach a steady state or not, so there is nothing special there.

Regards,

Yvan