PARTICLE-BASED CFD SOFTWARE FOR MOST RAPID PROTOTYPING

We’re excited to introduce PreonLab 7.2!

Where previous releases focused on adding new physics capabilities, PreonLab 7.2 is about getting the most out of them. This release brings a broad set of workflow improvements that make working in PreonLab faster and more intuitive. It also makes steady-state thermal simulations considerably more efficient and delivers targeted improvements for transmission, soiling, and rigid body workflows. The result: less time spent on setup and more time for understanding the results.

• Setup Profiles and Script Recording: PreonLab 7.2 introduces two new features that make simulation setup faster and more consistent. Setup Profiles capture proven settings and best practices for recurring simulation types once and apply them to every new scene, which is especially valuable across many projects or design variants. Script Recording captures actions performed in the GUI and automatically generates the corresponding PreonPy code, making automation easier to get started with. Both are complemented by many smaller enhancements, a lot of them shaped directly by customer feedback.
• Staggered CHT for Thermal Simulations: The new Staggered CHT approach reduces the time needed to reach a converged thermal state by up to 8x compared to Monolithic CHT. Instead of computing fluid and solid together at every time step, the two domains are alternately active and frozen, taking advantage of their very different time scales. This delivers a substantial speed-up with comparable accuracy for the steady-state result, making applications such as e-motor cooling significantly more efficient to simulate.
• Transmission, Soiling and Other Improvements: Setup profiles for single-phase and multiphase cases, together with keyframable inputs for calculated properties, reduce the manual steps needed to set up transmission simulations. For challenging multiphase cases with continuous particle size (CPS), the new Compressible Position Correction (CPC) option enables more stable and robust simulations. For soiling, the Virtual Wind Tunnel now automatically keyframes wheel rotation based on the airflow, and the rain source supports user-defined drop size distributions. In addition, the new experimental rigid body constraints and joints let users model connected mechanisms such as hinged flaps and linked components, opening the door to new applications in PreonLab.