Learning Forum

[Jack1999]

 Hi, 

I am fairly new to the Ansys software i have ran a few simulations of other devices but i have recently downloaded the student edition to my personal device and when i go to edit the setup on a fluid (Fluent) system i get the error message "Exception of type 'Ansys.Fluent.Cortex.CortexNotAvailableException' was thrown." 

Fluent opens to begin with and in the console window the command is running, then the following message pops up. "VKI license is not available. Corresponding TUI and GUI options for import and export will not be available". fluent then closes and takes me back to the workbench where i get the error message about "CorexNotAvailable. 

If anyone could help that would be great.

Thanks, 
Jack.

[Rob]

VKI isn't related and shouldn't cause any issues.  Cortex tends to be graphics related, have you checked on here for other people seeing the same issue?

[dhannume]

Hello, 

I am receiving the same error. 

 

I received this error in 2019 R3 version. I tried reinstalling but received same error.

I have tried installing 2020 R1 version also. receiving the same error.

Note: I am using a laptop with i3 processor & 8GB RAM. I have used Fluent in anther laptop with i3 & 4GB RAM but it worked well then.

please let me know how to resolve this issue.

[tsiriaks]

As rwoolhou stated, Cortex issue is likely related to graphics. Please let us know your graphics information (model and driver)

Also, do you have the same issue if you are using stand-alone Fluent ?

[dhannume]

The graphics card in my system is the basic GPU. Its similar to a home laptop.

How do i run standalone fluent I understand the only way is to run Fluent is from the workbench.

Please let me know how to do it, i will try it.

[dhannume]

Ive retried multiple times but i keep getting the same error.

I have attached a screenshot below of the complete error.

[Jack1999]

Hi, 
I managed to resole the issue with fluent, I am using 2020 R1. When opening fluent from the workbench a box opens with options such as 2D, 3D, double precision etc, then in the bottom right of that box there is a section that says GPGPU and this was originally at 0. When I changed this to 1 fluent opened fine. I think it was because it's the first time I had used it on this laptop and it wasn't set up properly.

[dhannume]

Hello,

i tried the method mentioned by Jack. But i still facing the same Cortex error.

[tsiriaks]

Change your GPGPU to 0 unless you have a really good graphics card.

There should be a shortcut for Fluent created on your Windows startup (similar to how you launch Workbench). If you don't see one, just open CMD Prompt and enter the following command

"%awp_root195%fluentntbinwin64fluent.exe"

If you have the same issue for stand-alone Fluent, in the Fluent Launcher -> More options -> Environment, then add the following in there

FLUENT_LAUNCHER_OPTIONS=-driver msw

If that still doesn't help, try changing the 'msw' to 'opengl' or 'opengl2'

[dhannume]

I cant find the application in the startup menu.

Also, when i enter he command you mentioned in the command prompt, I get the below error

"The system cannot find the path specified"

[tsiriaks]

Post the screenshot when you try the command

[dhannume]

Hello,

I have attached the screenshot below

[tsiriaks]

You missed the quote " "

it must be exactly this

"%awp_root195%fluentntbinwin64fluent.exe"

[dhannume]

I am still getting the same error.

[tsiriaks]

Post screenshot similar to above.

Also, post another screenshot for the output of 

set

command.