Comprehensive numerical software focused on engineering and science

For industry

Providing advanced simulations of complex physical phenomena, our software is a must for every engineer who wants to quickly and easily produce optimal solutions.

For scientists

Discovering and describing new phenomena is our speciality. Our software implements advanced solvers applicable to a wide range of applications.

For evaluation

Thousands of potential users are interested in high-fidelity numerical analysis. To meet their expectations, we share our software for evaluation purposes for free.
Anything is possible. For sure.
Try our software and you’ll never look back.
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Unique features that improve your work and your efficiency

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Multiple licensing plans to satisfy your specific needs

As a comprehensive numerical tool, simFlowTM offers functionality to handle such phenomena:
  • compressible and incompressible fluid flow
  • turbulent flows
  • heat transfer (conduction, natural/ convection, radiation)
  • multiphase flows
These processes can be modelled in both stationary and rotating frames. And if necessary, it is possible to treat solid material as a porous medium. Our simFlowTM software allows you to perform parallel computing with just one single click. Based on open-source code, simFlowTM combines an intuitive user interface with the advantages of the powerful OpenFOAM®* (2.1.0-2.2.1) libraries. And when you’re on the go, simFlowTM keeps you informed about solution convergence issues via e-mail, enabling you to keep track of your computations.

Using simFlowTM, you can create and import mesh, prepare cases, converge solutions of the problem and post-process results. Advanced post-processing capabilities and results visualisation are provided by linked ParaView software, which is available for free.

With its cutting-edge methods and intuitive graphical user interface, our simFlowTM software is an excellent choice for engineering companies, research facilities and individual users.
choose your licensing option:

For industry

3000 €

For academic

300 €

For evaluation



Achieving common success through support services

Analysis & consultancy

Our company cooperates with research facilities and scientists from European universities. We can, therefore, offer both theoretical knowledge and experience in using software for solving practical problems. Our partners have experience in engineering design and product commercialization. Joint forces of experienced engineers and scientists with far-reaching ambitions and an eagerness for challenges all come together and provide optimal solutions and immense customer satisfaction.

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The simFlowTM software vendor offers a wide range of support services, including individual and group training. Depending on your needs, the scope of the training may include both fundamentals of numerical methods and the practical use of the simFlowTM software. For more information, please contact us. A support team member will immediately get back to you and provide details regarding your proposition.

I am interested»

Software customization

Many customers use our software because we customize it to meet their sophisticated requirements. They continuously improve the quality of their services and promptly respond to customer needs. Therefore, making our software as user-friendly as possible is of prime importance. For demanding customers, we offer services based on individual software customization according to defined expectations. With customized software, you will shorten analysis time and improve the efficiency of your team.

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No user left alone when faced with problems


How to install the software?

Our simFlowTM software supports both the Windows and Debian-based Linux operating systems and is provided as an automatic installation package. Linux users only need to get acquainted with the readme file for prefect and simple configuration of our simFlowTM software.

Please note that 64-bit Linux users must install 32-bit compatibility packages to run the simFlowTM installer. This can be done using the following command: 'sudo apt-get install ia32-libs' in Debian-based Linux (with more information available here).
If there are no execute permissions for the installer file, please change the file permissions by using the following command: 'sudo chmod a+x [FILE/DIRECTORY NAME]' for all users; for just the current user: 'chmod +x [FILE/DIRECTORY NAME]'; you can also change file permissions in the file ‘Properties’ by selecting ‘Allow executing file as a program’ in the ‘Permissions’ tab.

Which systems are supported by simFlowTM?

As mentioned above, simFlowTM is available for both the Windows and Debian-based Linux operating systems. The software is compatible with 32-bit- and 64-bit-systems; however, the OpenFOAM®*-based simFlowTM engine, which is provided for free with the simFlowTM installation package for Windows, requires a 64-bit system architecture. Linux users can use the 32-bit or 64-bit OpenFOAM®* versions 2.1.0, 2.1.1, 2.2.0 and 2.2.1. If you aim to use simFlowTM on Linux, please get acquainted with the readme file for correctly configuring the software.

Which license should I choose?

There are three types of licenses available: commercial, academic and evaluation.

If you wish to use our software for commercial purposes, you must select the commercial license, with which you can use our simFlowTM software without any restrictions, provided that the license conditions are accepted.

For scientific purposes, we offer the academic license, which includes the following two possibilities: (1) for teaching students; and (2) for scientific research.
You cannot use the software with the academic license for work directly or indirectly related to generating income or saving money because this license is unable to carry out commercial analyses.

The evaluation license allows you to use our software to review its possibilities and learn how to use it. This license is an obvious choice for students using our software during their studies to perform CFD analysis. Software with this license cannot be installed on computers owned by companies and research units and may be used only on private computers.

To get further acquainted with our licensing details, please read our license conditions.

Can I use simFlowTM on more than one computer?
You can use our software on any number of computers as long as it does not exceed the number of licenses that you have purchased.
How do I use User-Defined Solvers?
For advanced OpenFOAM®* users, we offer functionality for using simFlowTM with your own custom solvers. Details as to how to do this are available here.


Are you looking for help from other simFlowTM users?
Join our users community where you can share your problems and help others solve theirs. Q&A forum »


Still looking for help?

We offer multiple levels of support. If you have any questions, contact us now! Contact us »

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Our company

Atizar Limited Sp. z o.o. is an engineering and software company that offers specialized cutting-edge solutions for numerical modelling and simulations. The company is primarily focussed on software development as well as dedicated engineering analysis and consultancy.

The company's mission is to enable engineers and researchers to create highly efficient technologies and describe the world around us by employing appropriate state-of-the-art technology. Our vision is to be a dynamic company whose efforts contribute to making numerical software easily accessible for even small engineering companies. We strive to ensure that engineers and scientists are pleased with our intuitive software interface and its high level of performance.

* Atizar Limited Sp. z o.o. is a company in no way related to OpenCFD Ltd. (ESI Group), producer of the OpenFOAM® software and owner of the OpenFOAM® and OpenCFD® trade marks. None of the OPENFOAM® related products and services offered by Atizar Limited Sp. z o.o. are approved or authorized by OpenCFD Ltd. (ESI Group).

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