Learning Forum

[Lucjan Nastalek]

Ansys Fluent - 2022 R2.

When run from Workbench, I was presented with an option to use Pressure-Based Coupled solver along with the "Local Time" for the Pseudo Time method.

However, both the manual and the stand-alone instance of Fluent do not provide this option.

Can anyone speak more to this, please?

[Rob]

They do, the solver is identical bar some options in the File menu. Please can you post screen shots. 

[Lucjan Nastalek]

Rob,

Thank you for your reply. 

Inspecting the "Method" task page in both stand-alone and Workbench look like so:

I've kept all the settings the same to eliminate any effects from other settings.

I have then surveyed the available options in both Fluent instances, and found the following:

 

There's also discrepancies between the available solver settings, and their descriptions in the documentation. 

For instance, on page 3459 - section 32.14 "Performing Calculations with Pseudo Time Method", Fluent User Guide states: 

However, I am allowed to use Pseudo Time Method for P-B Transient even when using a segregated solver:

But not for the D-B solver:

And then, on page 3461, Fluent User Guide states:

 

I think what I'm trying to ask here is whether Fluent ran from Workbench has more options available than when ran as a stand-alone instance?

 

 

[Rob]

You've also got steady & transient set up for the first and second set of images to potentially confuse things. 

Fluent from WB should be identical to standalone as it's the same solver.