FIFTY2

Innovation corner

There is always one more shot to solve the unsolved problem. Tinkering around, entering the unknown and starting over again is our approach to push the boundaries and create next level innovations. Stay tuned for PreonLab updates, new researches, groundbreaking innovation and upcoming events.

October 19, 2021
Saba Golshaahi Sumesaraayi and Markus Ihmsen
The Poiseuille flow serves as an important benchmark for the validation of CFD methods as well as for studying fundamental aspects of pressure-induced incompressible internal flows. In this article, capabilities of PreonLab in capturing hydrodynamically fully developed 2-D laminar flows between parallel plates (known as planar Poiseuille flow) are evaluated for different Reynolds numbers.
October 18, 2021
Markus Ihmsen, Jens Cornelis, Jennifer Weiche and Jan Viher
Our Researchers and Developers have worked hard to make PreonLab 5.1 real. It is packed with entirely new options for the most prominent simulation challenges that are solved with PreonLab. Besides the new physical models and numerical improvements, we have even further enhanced the usability of PreonLab in order to give you more options when retrieving data from the simulation results. Stay tuned for more insights of this release!
October 13, 2021
Thomas Rinklin and Jens Cornelis
Reliability is one of the key drivers of our product development at FIFTY2. Users of PreonLab can always be sure, that new versions have been thoroughly tested before we release them. On the other hand, our quality awareness should not slow us down implementing new features. In this article we show how our development process is structured such that we don’t sacrifice one goal for the other. We continuously validate the simulation results and the application behavior. This means, that every new feature is carefully looked at. Our engineering team analyzes the result and validates physical aspects. New development should also not break existing workflows. There are a lot of different aspects of quality assurance, which in combination makes PreonLab an enjoyable user experience. At FIFTY2, we have different stages where different variants of software testing is strictly incorporated in the development process. Like this, we minimize the risk of regressions and side effects and ensure reliable simulation results. It is always our goal to ensure, that the PreonLab version deployed to our users is the best version so far.
September 30, 2021
Fabian Meyer and Marian Majda
Snow creates deeply physical experiences that can remain vivid memories: Seeing snow for the first time, a snow crystal melting on your tongue, a snowball fight, the different activities summarized as winter sports. However, snow also affects human activity and can, quite literally, get in the way. Snowplows clear roads, highways, airfields and railroads. Snow drifts may destabilize structures due to uneven loading. Avalanches and blizzards are natural hazards that can endanger living beings. PreonLab solves many automotive problems. When it comes to snow, one is foremost interested to prevent soiling of critical components. The number of tasks is vast. Some that PreonLab has already solved are: Placing cameras for self-driving cars, snow entering the engine air intake which can cause a power drop or localizing corrosion hot-spots in the wheelhouse. Audi and Great Wall Motor are just some examples demonstrating the snow solver capabilities to simulate and capture phenomenas measured in real world test setups at different vehicle speeds. Out of the many sensors PreonLab provides, the addition of the height sensor has been key for the engineers to assess soiling. So how does PreonLab achieve this? Let’s take a step back and look what we are up against.
September 09, 2021
Aju Abraham and Shreyas Joshi
Each simulation tool/method has its strengths. Often in industrial workflows, multiple tools are combined over an interface to exploit the advantages each tool offers. PreonLab offers a wide range of possibilities to easily couple it with other tools. In this article, we talk over the several coupling interfaces that PreonLab offers, and more specifically a workflow developed for coupling PreonLab to TAITherm using a case of battery cooling simulation.
August 18, 2021
Saba Golshaahi Sumesaraayi and Markus Ihmsen
The lid-driven cavity problem is of high importance in fluid dynamics serving as a benchmark for the validation of CFD methods as well as for studying fundamental aspects of incompressible flows in confined volumes driven by the tangential motion of one or more bounding walls. In this article, capabilities of PreonLab in capturing 2-D flows inside a cavity are evaluated for different Reynolds numbers.
August 12, 2021
Saba Golshaahi Sumesaraayi, Max Flamm and Andreas Henne
With the release of version 5.0, PreonLab saw several additions to it, ranging from new features to under-the-hood developments. They play an important role for wading simulations, which can be broadly classified as follows: Performance & Accuracy: Adaptive simulations with up to 3 particle levels Faster Pressure Solver Usability: Object Grouping Improvements in the Plot Dialog Improvements in the Connection Editor Connect sensor right-click action
July 22, 2021
Loïc Wendling, Jennifer Weiche, Shreyas Joshi and Aju Abraham
Piston Cooling Jets (PCJs) are used in traditional Internal Combustion (IC) engines to remove the excess heat from the piston, allowing for higher thermal loads to be reached. PreonLab 5.0 allows for investigations of the dynamic and thermal interactions between the lubricating oil jet and the moving piston.
July 08, 2021
Jing Tai Tune
For coarsely-resolved simulations, especially those for applications that require numerous quick design iterations to asses the plausibility of a design, a simulation that both runs quickly and delivers results in the correct ballpark is needed. The coarse resolution allows for fast computation, but such simulations tend to suffer from gradient underprediction at the walls. This happens in particular for flow regimes which may be considered as turbulent, where the steep gradients at the wall mean that a very fine resolution is required to correctly reproduce them. With the effect of wall-bounded phenomena (e.g. wall shear stress, wall heat flux) being a key result for studies that such simulations are used for, it is clear that there is potential for improvement here.
June 23, 2021
Max Flamm and Saba Golshaahi Sumesaraayi
Being one of the flagship applications of PreonLab has made it important to offer various post-processing possibilities to address the needs of the users when it comes to water wading simulations. You can gain loads of insight by performing a full wetting analysis, measuring the flooding height, predicting under-body forces and understanding the flow paths for the regions of interest as well as measuring flow rates of water entering the engine compartment or any critical part of the vehicle.