What's New in Ansys 2025 R2?
Ansys 2025 R2 marks a transformative leap in engineering simulation, fusing powerful artificial intelligence, cloud scalability, and high-fidelity multiphysics modeling. This release helps engineers design faster, more accurately, and more collaboratively whether they’re working in aerospace, automotive, electronics, or emerging technologies. AI is now woven into nearly every part of the Ansys ecosystem, and cloud-based tools are unlocking new efficiencies.
Introducing Ansys Engineering Copilot
The new Ansys Engineering Copilot brings AI-powered virtual assistance directly into Ansys solvers like Mechanical, Fluent, HFSS, and Discovery. Built on Ansys' technical expertise, Copilot enhances productivity with smart recommendations, on-demand documentation, workflow guidance, and direct access to Ansys support content. It simplifies simulation setup, reduces errors, and allows engineers to focus on innovation instead of troubleshooting.
What's New in Ansys SimAI
SimAI 2025 R2 introduces advanced surface post-processing with the intuitive "predict as learnt" feature and reinstates the popular Surface Evolution tool. Model building is faster, with real-time training data updates and a streamlined "build on top" workflow. The Model Evaluation Report now includes build duration presets, and a centralized error view improves troubleshooting. Usability upgrades, like banners, upload toasters, and improved config visibility, make for a smoother experience.
- "Predict as learnt" improves accuracy in surface post-processing by adapting over time.
- Surface Evolution returns for enhanced post-analysis comparisons.
- Real-time training data status updates boost workflow visibility.
- Centralized error reporting simplifies troubleshooting incompatible datasets.
- CSV exports identify dataset contributions to Model Evaluation Reports.
Structures Simulation Highlights in Ansys 2025 R2
Ansys 2025 R2 brings substantial improvements to structures simulation by accelerating solve times, enhancing automation, and strengthening integration with AI tools like Engineering Copilot and optiSLang. This release focuses on refining workflows for mechanical, additive, and electronics reliability applications while extending multiphysics support.
Ansys Mechanical 2025 R2 Updates
Mechanical now features enhanced meshing, faster solvers, and expanded automation. Structural optimization for RIB design and improved battery simulations accelerate product development. Embedded optiSLang enables seamless parametric studies within the Mechanical UI, while AI+ tools enhance accuracy and simulation throughout.
- Improved meshing speeds up setup and reduces element count without compromising accuracy.
- Structural RIB optimization tools automate weight reduction in load-bearing components.
- Battery modeling updates offer better thermal and structural performance predictions.
- optiSLang integration streamlines sensitivity analysis and design of experiments.
- GPU acceleration shortens computation time for large-scale simulations.
Ansys LS-DYNA 2025 R2 Updates
For Ansys LS-DYNA, this release improves performance for crash and impact simulations with automatic ROM creation and workflow upgrades. Advanced post-processing and battery thermal modeling enhancements help engineers simulate complex interactions more efficiently.
- ROM automation cuts setup time and enables rapid iterations.
- Enhanced multiphysics post-processing improves impact analysis clarity.
- Thermal abuse models improve accuracy for EV safety simulations.
- Support for high-speed impacts and nonlinear materials is expanded.
Ansys Sherlock 2025 R2 Updates
Sherlock gains deeper integration with Mechanical and enhanced PCB reliability modeling. Users can now simulate board-level stresses with higher fidelity using actual usage profiles.
- Enhanced electronics fatigue models predict longer product life.
- Integration with Mechanical supports co-simulation of mechanical and thermal loads.
- Shock and vibration workflows are more intuitive with guided setups.
- New data import options improve flexibility with third-party EDA tools.
Ansys Additive 2025 R2 Updates
Additive manufacturing simulations now run faster and are more robust, thanks to the Ansys Additive updates. Powder bed fusion and support optimization features help engineers predict distortion and minimize material use.
- Improved metal additive process simulation accuracy.
- Enhanced support structure optimization for cost and print stability.
- Real-time thermal history tracking for distortion prediction.
- Integration with Material Designer simplifies material modeling for AM parts.
Fluids Simulation Highlights in Ansys 2025 R2
Fluids tools in Ansys 2025 R2 receive broad updates to improve simulation speed, physical fidelity, and multiphysics integration. Fluent’s GPU and web interfaces enable light, fast simulations, while enhanced combustion and electrochemistry features support next-gen battery, chemical, and energy systems.
Ansys Fluent 2025 R2 Updates
Fluent receives major GPU solver upgrades—S2S radiation runs 2–2.5x faster, and VOF support (beta) enables more accurate multiphase flows. AI-based CoPilot is now embedded in Fluent Desktop and available via Fluent Web for browser-based simulation. New combustion and electrochemistry features make Fluent ideal for high-fidelity thermal and battery analysis.
- Surface-to-Surface radiation GPU solver runs 2–2.5x faster.
- Volume of Fluid (VOF) model supports non-Newtonian, multicomponent flows.
- Embedded Ansys optiSLang for parametric optimization studies.
- CoPilot in Fluent ribbon assists with setup, tutorials, and issue resolution.
- Fluent Web interface enables browser-based simulations with real-time feedback.
Ansys CFX 2025 R2 Updates
CFX introduces mixed fluid/solid domain interfaces, simplified forced response calculation via Generalized Force, and flow boundary coupling with Fluent. These features streamline setup and enable more accurate turbomachinery simulations.
- Mixed fluid/solid domain interfaces ease turbine CHT modeling.
- Generalized Force (beta) aids in forced response convergence evaluation.
- Fluent/CFX coupling at flow boundaries supports complex component interactions.
Ansys Turbogrid 2025 R2 Updates
Turbogrid now supports hybrid meshing with better transitions and periodic boundary consistency. Enhanced CAD compatibility via watertight topology improves meshing accuracy for blade geometries.
- “Last Aspect Ratio” method improves prism-to-tet transitions.
- Periodic boundary refinement supports high-quality structured meshes.
- Watertight CAD topology enhances robust mesh creation for clean models.
Ansys Rocky 2025 R2 Updates
Ansys Rocky’s latest features include deformable particles, liquid spray modeling, and improved DEM-to-Mechanical FSI coupling. With new usability features and scripting performance gains, Rocky simplifies complex particle simulations.
- Deformable particles (beta) allow realistic modeling of soft solids.
- DEM-SPH-fluid coupling for heat transfer and FSI.
- EEPA contact model includes adhesive forces between particles.
- New modules for spray and particle storage enhance realism.
Ansys Thermal Desktop 2025 R2 Updates
Thermal Desktop introduces quadratic thermal elements and pipe-in-solids modeling, enabling engineers to test heat transfer designs without remeshing. It now integrates with optiSLang for automated design optimization.
- Pipe-in-solid modeling simulates embedded cooling without fluid meshes.
- Quadratic thermal elements provide better gradient resolution.
- optiSLang node enables automated design space exploration.
Ansys FreeFlow 2025 R2 Updates
FreeFlow becomes fully available with GPU-based SPH solvers and new surface tension modeling. Enhanced multiphysics coupling supports 1- and 2-way connections with Mechanical and Motion, while new SDKs enable powerful automation.
- SPH surface tension model simulates droplets and film behavior.
- Thermal coupling exports HTC data to Mechanical.
- SDK and scripting modules enable deep solver customization.
- SPH freeze-outside-region module reduces unnecessary calculations.
Ansys Chemkin 2025 R2 Updates
PyChemkin debuts, offering Python-based Chemkin scripting and faster workflow customization. New battery-focused fuel mechanisms and license flexibility make Chemkin easier to scale across HPC environments.
- PyChemkin adds scripting access to property and reactor tools.
- New mechanisms for battery thermal runaway and sustainable fuels.
- Included in CFD HPC Ultimate license for large parallel runs.
Electronics Simulation Highlights in Ansys 2025 R2
Electronics simulation in 2025 R2 receives expanded GPU acceleration, faster workflows, and stronger AI assistance. Engineers benefit from smarter solvers across chip-to-system, antenna, and electromechanical simulations. Integration across the Electronics Desktop suite enhances cross-domain collaboration.
Ansys HFSS 2025 R2 Updates
HFSS and HFSS 3D Layout now feature accelerated frequency sweeps, optimized antenna arrays, and Python scripting enhancements. Radiation pattern simulations run up to 17x faster, vital for 5G/6G and aerospace applications.
- 17x faster radiation pattern calculations via GPU support.
- Enhanced antenna array modeling and layout automation.
- Python API updates streamline scripted workflows.
Ansys Maxwell and Motor-CAD 2025 R2 Updates
Ansys Maxwell and Motor-CAD receive axial flux machine updates, ELM slicing, and parallelized lab models. These upgrades reduce time-to-market and improve accuracy for electric motor development.
- Axial flux topologies for single/dual configurations.
- Equivalent Linear Model slicing enables detailed loss analysis.
- Lab model parallel build speeds up test cycles.
Ansys Icepak 2025 R2 Updates
Icepak gains GPU acceleration and electrothermal simulation performance enhancements. It now integrates more deeply with HFSS and Mechanical for comprehensive heat management.
- GPU support accelerates electronics cooling workflows.
- Radiation pattern support with electrothermal coupling.
- Seamless HFSS integration for accurate component-level modeling.
Ansys SIwave 2025 R2 Updates
SIwave improves high-speed signal and power integrity simulations with AI-enhanced accuracy and faster model solving. Upgrades to 3D extraction workflows and PCB system modeling make it ideal for complex board designs.
- Faster multi-layer PCB simulations with improved meshing.
- AI+ signal prediction tools reduce simulation error.
- Better 3D layout visualization and EMC compliance checking.
Optics Simulation Highlights in Ansys 2025 R2
Optics tools receive major upgrades in performance, scene realism, and cross-platform integration. These changes empower engineers to build photonics and imaging systems faster and simulate real-world light behavior more accurately.
Ansys Speos 2025 R2 Updates
Ansys Speos gains Cloud Burst Compute, glTF import, and advanced lens design tools like TIR-compatible inner faces. These features accelerate photorealistic simulations for lighting, sensors, and optical lenses.
- Cloud compute scales high-performance lighting simulation.
- glTF import enhances scene rendering realism.
- TIR-compatible lens elements improve optical compactness.
Ansys Zemax OpticStudio 2025 R2 Updates
In the updates to Zemax OpticStudio, the new NSC Sequence Selector with a visual builder simplifies complex ray tracing in HUDs and imaging systems. Enhanced metalens simulation capabilities and direct export to Speos streamline the design pipeline.
- Visual sequence builder for NSC modeling speeds system design.
- Custom window sizing accelerates simulation time.
- Metalens Fast Mode boosts simulation speed for metasurfaces.
Ansys Lumerical 2025 R2 Updates
Lumerical’s FDTD solver now includes GPU acceleration with near-linear speed scaling. Optimized gradient calculations boost PIC design efficiency, while the AI-powered AnsysGPT assistant supports learning and troubleshooting.
- GPU scaling improves FDTD solver turnaround time.
- Enhanced photonic inverse design optimization via gradient boosts.
- AnsysGPT assistant aids with help documentation and setup questions.
Materials Simulation Highlights in Ansys 2025 R2
Granta 2025 R2 simplifies materials management with better traceability and digital thread alignment. Engineers gain faster access to simulation-ready datasets, updated compliance data, and improved integration with PTC and Siemens tools.
Ansys Granta 2025 R2 Updates
Granta now includes seamless CAD-to-CAE material assignment, with UX upgrades for PTC Creo and NX workflows. New datasets cover composite materials, adhesives, and sustainability attributes like PFAS compliance and transport energy data. Side-by-side material comparison and simulation-ready exports streamline engineering decision-making.
- Improved MI Gateway for assigning materials within Creo/Windchill.
- New composite materials and metal forming datasets.
- PFAS compliance data helps meet sustainability regulations.
- Selector added to main Ansys installer for convenience.
- UX improvements for favorites list management and data comparison.
How Will Ansys 2025 R2 Affect Industries?
Ansys 2025 R2 drives digital transformation across sectors with cloud scalability, AI-enabled tools, and faster, more accurate simulations. Engineers can now simulate complex designs more efficiently and make data-driven decisions earlier in the design cycle.
Aerospace and Defense
Engineers working in aerospace and defense benefit from improved HFSS and Optics tools that accelerate antenna design, radar systems, and optical sensors. The AI-enhanced CoPilot speeds up simulation setup while cloud compute enables faster scenario testing.
- HFSS improvements boost phased-array and radar system development.
- GPU-accelerated radiation patterns support satellite communication analysis.
- Zemax and Speos updates improve optical sensor design.
Automotive
New combustion and battery models in Fluent and LS-DYNA support safer, more efficient vehicle designs. Speos and Zemax updates improve sensor modeling for ADAS and autonomous vehicles.
- Fluent VOF and CHT upgrades refine thermal performance modeling.
- Battery abuse simulations improve EV safety testing.
- Optical simulation upgrades help model LiDAR, camera, and HUDs.
Industrial
Mechanical and Rocky enhancements optimize machinery and factory equipment simulations in manufacturing and industrial settings. AI+ automation reduces manual effort and speeds up design iterations for competitive manufacturing.
- Rocky particle models enhance bulk material handling systems.
- Mechanical's structural optimization accelerates equipment design.
- Python automation and SPDM tools enable digital twin creation.
Medical Technology
With enhanced thermal and optical simulation tools, medical technology designers can rapidly test and refine imaging systems, diagnostics devices, and wearable sensors with high precision.
- Speos and Zemax streamline compact optical device prototyping.
- Thermal Desktop helps evaluate implant and wearable cooling.
- AI+ tools support safe design of energy-emitting devices.
Energy
CFX and Chemkin upgrades support clean energy and combustion research. Battery abuse modeling and enhanced multiphase capabilities are critical for renewable energy storage and grid resilience.
- Chemkin’s new hydrogen and ammonia fuel models help decarbonize energy systems.
- Fluent’s electrochemistry models boost battery R&D.
- Coupled simulations improve solar inverter and turbine design.
High Tech
High tech is a rapidly growing industry, and the 2025 R2 update reflects this sectors' innovation. Semiconductor, photonics, and electronics companies will see major gains from HFSS speed boosts, Lumerical GPU simulations, and seamless PCB to system-level simulation. AI+ tools enable faster iteration and design optimization.
- SIwave and HFSS streamline PCB/system EMC verification.
- Lumerical GPU solver shortens time-to-silicon for photonic ICs.
- AI+ prediction enhances performance modeling accuracy.
Ansys 2025 R2 redefines simulation with deeply integrated AI, fast GPU-accelerated solvers, and expansive cloud computing capabilities. Engineers across industries now have access to more powerful tools that streamline design, reduce risk, and spark innovation. Whether you're simulating next-gen electronics or optimizing industrial machines, this release gives you the technology to lead in a digital-first world.