Optimized products make you stand out from the mass in the engineering market. CAESES® helps you to achieve this goal by letting you create powerful robust geometry models that can be integrated into any simulation-driven optimization loop. This makes CAESES® an efficient and automated CAD engine for faster design studies with your meshing and simulation tools.

CAESES® gives you flexible parametric modeling, but also integrated capabilities for process automation and shape optimization. This combination in a single user interface makes it an all-in-one design system for simulation engineers from any industry.

caeses logo



CAESES® stands for “CAE System Empowering Simulation” and its ultimate goal is to design optimal flow-exposed products. It focuses heavily on simulation engineers that need automation, in particular in the context of geometry generation. 

CAESES® focuses on automation!

With a focus on automation, CAESES helps you to be more productive and to drive more value from your existing simulation software investments. Your product development benefits from a massive acceleration, while fostering design exploration and innovation.

Automated changes of complex shape features
Automated changes of complex shape features


As a central component of CAESES, the creation of complex geometry variants is automated and 100% robust, thanks to the dependency-based modeling approach – as opposed to the history-based approach of other CAD systems. The entire process can be optionally scripted to run in batch mode.

All generated geometries are clean and watertight without any manual pre-processing, which saves you hours of work. CAESES models contain fixed patch identifiers (surface IDs) to automate the meshing process.

CAESES individual colors
Assign identifiers, colors and triangulation settings for each individual surface patch which will be preserved for all generated designs

Efficient Geometry

CAESES® models have less parameters which saves computational time in optimization processes. You can even build design constraints into your CAESES® models, such as cross-sectional areas, minimum distances to keep, manufacturing constraints, hard points, etc. This ensures that only valid designs are created during optimization runs. No more waste of time due to infeasible designs!

Automated variation of a 2D piston bowl contour
Automated variation of a 2D piston bowl contour where the compression ratio is kept constant

Find Optimal Designs 

CAESES® itself contains no CFD or other simulation methods, instead it seamlessly integrates your existing tools to create a closed loop. The capabilities for automation of simulation tools let you plug in flow and structural analysis.

In addition, CAESES® comes with integrated strategies for parameter studies and shape optimization. Together with the geometry modeling, you have everything you need to investigate large sets of design candidates in a massively reduced time frame.

CAESES can also be used in combination with existing optimization tools, such as Dakota, OptiSLang, Optimus, ModeFrontier etc. In these situations, CAESES runs in the background as efficient and robust geometry engine.

Run design studies and compare geometries and simulation side-by-side in CAESES
Run design studies and compare geometries and simulation side-by-side in CAESES


CAESES®  is used in various industries for all kinds of applications. Typical areas of interest include ship hulls, turbomachines, ducts and manifolds, engine components, aerodynamic bodies such as aircraft and race car components, mixers, propellers, etc. CAESES® is suited for both internal and external flow applications.

CAESES Applications

Who Uses CAESES?

More than 150 leading companies all over the world use CAESES® for the design and shape optimization of engineering products. Examples are SIEMENS, Caterpillar, MTU, Hyundai, SAMSUNG, Parrot, Grundfos, Kawasaki, just to pick a few. See the dedicated applications page for a list of selected references for each application.

Fast Support and Community Forum

As a CAESES user, you don’t get lost in complicated ticket systems or hotlines. Benefit from a super fast and direct support, and additionally browse through the lively CAESES forum to exchange questions and ideas with the community.

Also Available for Linux

Having CAE tools that can be automated on HPC clusters is crucial nowadays! That’s one of the reasons why CAESES® is also available for Linux, including a batch mode option (non-GUI option), to let you exploit all your hardware resources. Read more.


Geometry Modeling

Create smarter parametric geometry for simulation with fewer parameters and with more flow-related control! CAESES® gives you specialized CAD for CFD that is geared towards generation of design variants.

Read more …


All parametric models in CAESES® are ready for automated meshing and CFD analysis. The geometry is clean, closed and colored in terms of their boundary information. Save time with one-time pre-processing that gets automatically applied for all new design candidates.

Read more …

CFD Automation

CAESES® allows you to integrate and automate your CFD or other simulation software. With this, you can analyze a new design candidate with a single click. Any external tool that has a batch mode can be immediately integrated and coupled to your geometry model.

Read more …


Once your geometry is ready and your simulation package is integrated, you can run design explorations and shape optimization. CAESES® provides a set of methods for the automated creation of design candidates so that no external optimization software is required.

Read more …

Shape Deformation

In addition to the parametric modeling capabilities of CAESES®, you can make use of morphing and shape deformation techniques. These methods are suited for fast shape optimization of existing geometries such as mesh or NURBS data. This greatly complements the CAD functionality of CAESES® and provides you further tools for the optimal design of your product.

Read more …

Powerful Scripting

CAESES® is a completely command-based platform where the commands are triggered in the background of the graphical user interface. However, all commands can be directly accessed by yourself to fully script, automate and customize the use of CAESES®.

Read more …

Optimization with Adjoint CFD

The use of adjoint CFD methods has been getting more popular in recent years. As an answer to this, CAESES® allows you to couple the results of adjoint CFD with the geometry parameters of your model. This reduces the number of model parameters to run faster shape optimizations.

Read more …

Custom Templates

No time to learn a new software? The variable and robust CAESES® models can be wrapped into an easy-to-use interface for non-experts of CAESES®. Use simple sliders and buttons to control your model, export geometry or even run full optimizations with one click.

Read more …




What makes CAESES® unique?

CAESES® is exclusively made for automated design processes in the CAE industry. Hence, the CAD capabilities focus on maximum robustness, fixed patch identifiers for automating the meshing, triangulation controls, scripting possibilities for highly customized models and much more in this context. The goal is always to robustly generate feasible design candidates in an automated way. The geometry creation does not break or fail to regenerate, for which a unique dependency-based framework is implemented.

I have a CAD tool already, so why CAESES®?

CAESES® is typically used as an upfront CAD tool in a collaborative and integrated way with traditional design and production CAD (e.g. CATIA, NX, Pro/E, SolidWorks). These traditional tools, although powerful, are detail-oriented and encompass features and capabilities, which may not be relevant for simulation.

Who is your target user?

CAESES® targets simulation engineers that need a flexible tool for the pre-CAD stage, to explore novel and innovative designs in an automated process. There is a strong focus on CFD engineers, but CAESES® is also coupled to structural analysis. Since CAESES® has a powerful CAD kernel, it can be a flexible solution for CAD engineers that need a high robustness, advanced scripting and automation capabilities.

Is it an optimization software?

Yes. CAESES® provides a set of strategies for advanced parameter studies and shape optimization (e.g. response surface techniques) that can be readily triggered and which are integrated in the GUI. If you already use an optimization software in your company, you can integrate CAESES® as a geometry engine into your existing loop. CAESES® has a batch mode and can be controlled by other optimization software, it is absolutely simple and robust. We have various optimization and CAE partners, where we make sure that our solutions work together as easy as possible for the user. Note that CAESES® is a geometry modeler in the first stage. The CAD capabilities are the key difference compared to other general-purpose optimization software. Even though the geometry in CAESES® can be connected to the integrated optimization strategies, it is an optional offer that you can use.

Does it also contain CFD solvers?

No. CAESES® does not contain any CFD or simulation capabilities. Instead it seamlessly integrates existing simulation tools that can be triggered in batch mode.

How can I license it?

We provide different licenses for companies and for academic purposes. Ranging from a standard edition up to a power edition: There are a few editions to choose from, depending on your industry, application, design task and budget. We are also open to discuss special packages for small companies, start-ups and freelancers. Contact us or browse here for more information …

More Questions?

We’d be happy to talk to you, either through emails, a telephone call or a web meeting! Please get in touch with us if you are interested in using CAESES® for your specific engineering application. And, in order to keep in touch: Note that there is a CAESES®-related newsletter which is sent out once or twice a month. It gives you the latest developments and product updates.


Icons by icons8.