Incorrect scalar mixing - update required

[Anonymous]

The scalar model used in Autodesk CFD show abnormal behaviour in terms of scalar quantity.

The following images show scalar, velocity magnitude and turbulent energy based on a scenario where two gases are injected into a large chamber. Mixing is underestimated [diffusive - not convective?] compared to experience and other software . Based on conversations with Autodesk support [feel free to comment], this is is a result of a solver using only diffusion coefficient rather than eddy viscosity to calculate solve the scalar trasport equation.

An update is critical - without this, the current scalar mixing implementation is of limited use.

[apolo_vanderberg]

Eric,

Have you tried using the Turb_Scalar flag that is available?

Would you be able to check that and see if it suffices with what you are asking for

Thanks

[Anonymous]

With the release of CFD 2016 SP2, I believe this bug has been resolved.

[ryan.arnaudin]

Thanks for the update! Glad it is working for you now.