CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   Fluent on Linux (

Shamoon Jamshed October 27, 2009 04:47

Fluent on Linux
Hi all,

I am new to Linux and tried to install Fluent on it. I had done everything mentioned in the installation guide and the CFD-online forum as well but I am still unable to run it. For example, I first install the .sh file using sh command then added some lines in the .bash_profile file. I have installed everything in the home directory. But now, when I type fluent in the terminal window it says fluent is not a command.

Can somebody pls help that where am I making a mistake or whats the problem?


-mAx- October 27, 2009 06:44

specify the solver:
>fluent 3d

Shamoon Jamshed October 27, 2009 08:18

Nup it doesnot work I tried to use it but it still says the same fluent is not a command

-mAx- October 27, 2009 08:30

cd to the folder where the executable is
and retry

Shamoon Jamshed October 27, 2009 08:36

here is what I tried
1) I installed the .sh fiel into the folder home
2) I used sh command and then tyoed the fiel name to extract it
3) After that I typed fluent (didnt work) I was in home dir
4) I went into the Fluent.Inc and then typed fluent (*Didnt work)
5) I went into the bin and then typed fluent (didnt work)
6)then I copied .bash_profile file into home and wrote some lines as mentioned in the installation guide but no success

Please guide me if i am missing something

-mAx- October 27, 2009 08:45

since you get the unknown command, it means that the executable isn t recognized.
Is there a fluent executable under /bin?
I think there is other folders like 2d 2ddp 3d 3ddp
go into one of these folder, and try to call the executable (which is in the folder)

Shamoon Jamshed October 27, 2009 08:54

I dont know how Linux shows an executable file, unlike in Windows where it is .exe. But in the bin folder this is the only file avaialble. I will try in other folders as well.
What about liscence file do we need to do something with liscense install or something like that as we did in windows?

-mAx- October 27, 2009 09:03

I don't have fluent anymore, but I remember I had similar issue
It was just a problem of environment variable
Have you checked here?
Once it is solved, you have to install the Fluent License Manager and to place your license file under /license

Shamoon Jamshed October 27, 2009 09:14

I told you that I have already modified the .bash_profile file but it did not work :(

-mAx- October 27, 2009 10:22

you are not supposed to copy and paste the .bash_profile file
It is supposed to be already present under your user folder /home/user_folder, where user_folder is the session you are logged in

-mAx- October 27, 2009 11:16


Originally Posted by -mAx- (Post 234171)
Is there a fluent executable under /bin?

try this
/.../Fluent.Inc/fluent-6.x.x/bin/fluent 3d
where 6.x.x is the fluent release you are trying to run

Shamoon Jamshed September 7, 2010 13:55

Fluent is slower on Linux

I am able to run fluent 6.3.26 on Linux suvccessfully. But unfortunatley the performance is slower than Windows HPC wich I had previously installed. What could be the reason? And even sometimes the Fluent hangs as well.

All times are GMT -4. The time now is 10:07.