Qarnot Technical Team
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Star-CCM+ on Qarnot Cloud - documentation

September 29, 2022 - Documentation, Numerical simulation


Star-CCM+ is a multiphysics software for the simulation of products operating under real-world conditions. Simcenter STAR-CCM+ uniquely brings automated design exploration and optimization to the CFD simulation toolkit of every engineer *.

Here is a quick step by step walkthrough to guide you through the different steps of how to run a Star-CCM+ test case on Qarnot, so follow along!


This software is proprietary, a license is necessary in order to use it. If you want to test this payload, please get in touch with our team:


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If you are interested in another version, please send us an email at

Before starting a calculation with the Python SDK, a few steps are required:

  • Retrieve the authentication token (here)
  • Install Qarnot’s Python SDK (here)

Note: in addition to the Python SDK, Qarnot provides C# and Node.js SDKs and a Command Line.

Test Case

This test case will walk you through how to launch the Acoustic Suppression Zone (ASZ) model on Star-CCM+, which is used to compute the to compute the acoustic noise and wave propagation of a given system. The input files can be downloaded from the following archive.

Once you have downloaded everything, your working directory should look like this:

  • acoustic_suppression : contains case input files
  • : launchs the computation on Qarnot (code found below)

Launching the test case

Once everything is set up, use the following script to launch the computation on Qarnot. Be sure to copy your authentication token in the script (instead of <<<MY_SECRET_TOKEN>>>) to be able to launch the task on Qarnot.

To launch this script, simply copy the following code in a Python script and execute python3 & in your terminal.




At any given time, you can monitor the status of your task on Tasq.




You should now have an output folder in your working directory on your computer and a starccm_out bucket in Tasq containing all output files.


You can visualize some images generated by the simulation that can be found in the images/ directory in your output bucket. Bellow is a preview of one of them.




Wrapping up


That’s it! If you have any questions, please contact and we will help you with pleasure!


Star-CCM+ definition source *


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