Using Ansys Fluent on the cluster

Ansys Fluent is a Fluid Dynamics Simulation software. Below are instructions on how to take advantage of RC resources to run advanced simulations in short amounts of time.

Fluent can be run as an sbatch script, or interactively using sinteractive

Using sbatch:

If you have your Fluent journal file, running an sbatch script is fairly simple.

An example sbatch script will be shown below:

You will need to replace all information with the correct information for you and your account. 

First, you will have to ssh into instructions for that can be found here: Connecting with SSH

then in sporcsubmit type in the command:

  $ sbatch

You can check to make sure your job is running by entering the command $ squeue -j job_id_number

Using Sinteractive

sinteractive provides a graphical interface to use fluent with.

To use Fluent in a terminal, x11 formatting is needed. MobaXterm is a tool that supports this and can be downloaded for free here.

After downloading and opening MobaXterm, hit the button that says "start local terminal" to open your terminal.

Then, ssh into Instructions for that can be found here: Connecting with SSH

You can also use FastX with sporcsubmit ad use the xTerm within that. Instructions for using fastx can be found here: Using Fastx

Follow the commands for submitting an sinteractive job here: Submitting a Job with sinteractive

Once in the sinteractive job(you will be able to tell because the computer name will be the-ocho instead of sporcsubmit),

enter the commands below:

  1. $ module load openmpi
  2. $ module load ansys/19.2.0
  3. $ fluent

The fluent command will bring up a ui version of fluent, that can be used just as you would use fluent on Windows.

If there are any further questions, or there is an issue with the documentation, please contact for additional assistance.