Problem wih time differentiation scheme

Hi,
I’m working on a project with external flow at high Reynolds and LES turbulence model. In my current setup I’m unable to change the Time differentiation scheme from Euler to a Second order type like backward.

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Project is here: SimScale Login

Any help would be very appreciated,

Andrés

Hi aoostra,
thanks for reaching out to us here in the forum. It seems like this is a bug. We have noticed the error and are working on a solution.

Best regards
Sebastian

Hi Sblock,

Here I’m again. After all this time I still cannot change the Time differentiation scheme from Euler to a Second order type like Backward. What can I do?

Kind regards

Andrés

Hello Andrés, hope you are doing well.

Euler implicit is the only time scheme available for transient simulations at the moment. That’s why once you select a LES turbulence model, which automatically enables transient option by it’s nature, time differentiation is selected as Euler, and grayed out.

I can see that this is already pushed to our product map, and it’s being evaluated. Thank you for the contribution. You can always check this page for SimScale product development.
Best.