ALE simulation v5.0.3 vs v6.0.2 discrepancy
Posted: Wed Apr 07, 2021 9:57 am
Hello,
I have some problems in understanding the behavior of different versions of code_Saturne with ALE internal coupling simulations.
I have performed a lot of ALE with internal coupling simulations with v5.0.3 in a quite straightforward way, without encountering inconsistencies.
I switched to v6.0.2 and I am facing some issues:
- the setup of the internal coupling through the GUI is not successful with v6.0.2, since I get the following error at the beginning of the simulation: "fluid_fx unrecognized variable", where "fluid_fx" is the default name of the fluid force on the x-direction provided in the GUI. I therefore need to do the setup through subroutines, not a big deal but the error of "fluid_fx" looks strange;
- the results in terms of solid displacements are drastically different between the two versions, for of course the same mesh and same fluid-solid setup.
Of course I realised the setup of v503 through the GUI and the setup of v602 through user subroutines, therefore I cannot guarantee that the setups is identical: but I have double checked several times and everything (fluid setup, structure setup, boundary conditions etc.) seem identical. Moreover, results are significantly different, which suggests that a major setup difference should exist (different fluid velocity or structure parameters, for instance) which is not the case.
I am a bit lost. I would like to ask if both v5.0.3 and v6.0.2 are meant to be fully validated versions, or should I better retain v6.0.0 for instance?
Thank you in advance for any suggestion anyone can provide.
Best regards,
Daniele
I have some problems in understanding the behavior of different versions of code_Saturne with ALE internal coupling simulations.
I have performed a lot of ALE with internal coupling simulations with v5.0.3 in a quite straightforward way, without encountering inconsistencies.
I switched to v6.0.2 and I am facing some issues:
- the setup of the internal coupling through the GUI is not successful with v6.0.2, since I get the following error at the beginning of the simulation: "fluid_fx unrecognized variable", where "fluid_fx" is the default name of the fluid force on the x-direction provided in the GUI. I therefore need to do the setup through subroutines, not a big deal but the error of "fluid_fx" looks strange;
- the results in terms of solid displacements are drastically different between the two versions, for of course the same mesh and same fluid-solid setup.
Of course I realised the setup of v503 through the GUI and the setup of v602 through user subroutines, therefore I cannot guarantee that the setups is identical: but I have double checked several times and everything (fluid setup, structure setup, boundary conditions etc.) seem identical. Moreover, results are significantly different, which suggests that a major setup difference should exist (different fluid velocity or structure parameters, for instance) which is not the case.
I am a bit lost. I would like to ask if both v5.0.3 and v6.0.2 are meant to be fully validated versions, or should I better retain v6.0.0 for instance?
Thank you in advance for any suggestion anyone can provide.
Best regards,
Daniele