Realis WAVE 2025: 1D Engine Simulation & Digital Twin Software
WAVE 2025 is Realis Simulation‘s industry-leading 1D CFD software for internal combustion engine (ICE) analysis, optimization, and digital twin development. The 2025 release (with updates 2025.1 and 2025.2) introduces predictive combustion for hydrogen and alternative fuels, enhanced rotary engine leakage modeling, optimized spray simulations (up to 70% faster), and faster real-time WAVE-RT solvers .
Key New Features in 2025
Predictive Combustion & Fuel Modeling
| Feature | Description |
|---|---|
| Fuel Stratification Modeling | Significantly improves direct injection gas engine simulation accuracy, particularly for hydrogen mix fuels |
| Predictive Combustion Capabilities | Detailed laminar/turbulent transition and stratification modeling for WAVE and WAVE-RT, enabling clean fuel technology development |
| Alternative Fuel Support | Hydrogen, ammonia, e-fuels, ethanol, methanol, and biofuel modeling |
Performance Enhancements
| Capability | Improvement |
|---|---|
| VECTIS Lagrangian Solver | Up to 70% faster for spray-dominated flows (exhaust cooling, fuel injection) |
| Rotary Engine Simulation | Up to 20% faster computations with enhanced leakage modeling |
| WAVE-RT Solution Speed | 10-20% faster real-time simulation without accuracy loss |
New Features in 2025.2
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WAVE Acoustics 3D Modeling: Enhanced acoustic analysis capabilities
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Turbocharger Controller: New physics-based model requiring no manual calibration; includes turbocharger acceleration for steady-state and transient simulation
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Co-simulation Support: Use WAVE as external model for third-party tools
Workflow & Integration
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Simplified Model Tuning: Streamlined R‑Desk workflow with automatic extraction and connection of varying model parameters
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R‑Desk Model Tuner: Greatly simplifies optimization workflow setup
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Faster Data Inspection: Accelerated post-processing and analysis
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Seamless Integration: WAVE to WAVE-RT transition simplified (WaveBuild to R‑Desk)
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System-Level Simulation: Calibrated WAVE-RT models support MiL, SiL, and HiL environments for digital monitoring, fault analysis, drivability, and OBD system improvement
