[Pierre1]

There’s one bug of Workbench CFX bothering me for a long time. It shows up sometimes occasionally, not usually. I have no clue about what causes this bug to show up and how to avoid it. Hope someone could help.

I use Workbench CFX ‘Parameter Set’ table (figure1) to calculate and output simulation results directly from different initial condition set (called ‘design points’ in CFX). But occasionally, as calculations of different design points are done, the table shows wrong output results which are all the same for different design points (figure2).

But if I turn on the CFX solver at Workbench in the middle of the simulations, I can see that the simulations actually read the correct input values. So the simulations are correct. It seems that, when the simulations are done, Workbench just give outputs parameter value from a same result file which doesn’t correspond to the design point, thus the simulation, which was just calculated.

When this happens, I always save the Workbench project as another file by clicking on the button ‘save project as….’Then I rerun the Workbench, the bug disappears.

But I really want to avoid this bug at the very beginning of the Workbench simulations. Could anyone tell me what’s the original of this bug and how to avoid it?

If there’s anything not clear in my question expression, please let me know and I will make it clear. Thanks.

[ghorrocks]

If you have found a bug you should report it to ANSYS. That is the only way to get it fixed.

Also make sure you are running the latest version (V16). ANSYS will not care if you have found a bug in an old version.

[Pierre1]

Originally Posted by ghorrocks

If you have found a bug you should report it to ANSYS. That is the only way to get it fixed.

Also make sure you are running the latest version (V16). ANSYS will not care if you have found a bug in an old version.

I'm using educational version 15.0. I'm not sure whether Ansys support could help on educational version.


Btw, it happens to me a lot of times. You have never got this problem?

[ghorrocks]

If you are reporting a bug you are helping them. Hopefully they will listen to you.

I rarely use workbench . I use CFX stand-alone most of the time.

[Pierre1]

Originally Posted by Pierre1

There’s one bug of Workbench CFX bothering me for a long time. It shows up sometimes occasionally, not usually. I have no clue about what causes this bug to show up and how to avoid it. Hope someone could help.

I use Workbench CFX ‘Parameter Set’ table (figure1) to calculate and output simulation results directly from different initial condition set (called ‘design points’ in CFX). But occasionally, as calculations of different design points are done, the table shows wrong output results which are all the same for different design points (figure2).

But if I turn on the CFX solver at Workbench in the middle of the simulations, I can see that the simulations actually read the correct input values. So the simulations are correct. It seems that, when the simulations are done, Workbench just give outputs parameter value from a same result file which doesn’t correspond to the design point, thus the simulation, which was just calculated.

When this happens, I always save the Workbench project as another file by clicking on the button ‘save project as….’Then I rerun the Workbench, the bug disappears.

But I really want to avoid this bug at the very beginning of the Workbench simulations. Could anyone tell me what’s the original of this bug and how to avoid it?

If there’s anything not clear in my question expression, please let me know and I will make it clear. Thanks.

Anyone has experience on this issue?

[chaitanya.mokashi]

Hi, did you find a solution to this problem? I am also facing the same issue, the workbench parameter table updates the same value for all design points.

Thanks in advance!

Chaitanya

[Christophe]

I think you need to make sure you select "Use as workbench parameter" in cfx pre, and run simulation, and then in post, use as workbench output parameter. Then fill in your table. Pretty sure if you do it all in cfx-post, the input parameters don't get passed to CFX pre, so it never really varies the input parameter.


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