CS/Syrthes Coupling
Posted: Tue Feb 10, 2026 6:03 pm
Hi there!
I am trying to reproduce numerically some experimental results : some metal bars are heated by Joule effect and cooled by surrounding air buoyancy.
Thus, I prescribe a heating field within the bars on the Syrthes side and couple the heat transfer simulation with the Code_Saturne solver.
Unfortunately, my numerical setup cools the bars 15 to 30% more than what is expected by the experimental result.
1) Could someone explain me how the Syrthes/Saturne coupling is done ? From what I have read so far in the Saturne Manual, the coupling uses some kind of duality method that I don't grab entirely.
2) At first, if I would have to code a simplified version of the coupling myself, I would impose a heat conduction transfer at the boundary (BC) between the air and the metal as :
F_{BC} = h.(T_{air} - T_{metal}),
with the sign of the transfer coefficient 'h' depending on which side I am looking at.
Is there any such 'h' coefficient in the Syrthes/Saturne coupling I could modify to control the heat conduction efficiency?
Thanks !
I am trying to reproduce numerically some experimental results : some metal bars are heated by Joule effect and cooled by surrounding air buoyancy.
Thus, I prescribe a heating field within the bars on the Syrthes side and couple the heat transfer simulation with the Code_Saturne solver.
Unfortunately, my numerical setup cools the bars 15 to 30% more than what is expected by the experimental result.
1) Could someone explain me how the Syrthes/Saturne coupling is done ? From what I have read so far in the Saturne Manual, the coupling uses some kind of duality method that I don't grab entirely.
2) At first, if I would have to code a simplified version of the coupling myself, I would impose a heat conduction transfer at the boundary (BC) between the air and the metal as :
F_{BC} = h.(T_{air} - T_{metal}),
with the sign of the transfer coefficient 'h' depending on which side I am looking at.
Is there any such 'h' coefficient in the Syrthes/Saturne coupling I could modify to control the heat conduction efficiency?
Thanks !