Combustion and Emissions Simulation
GT-POWER includes various solutions for modeling combustion and emissions
Combustion & EmissionsAPPLICATION HIGHLIGHTS
- Predictive combustion models for:
- Multi-pulse direct injection diesel
- Port and/or direct injection spark ignition
- Dual-fuel (premixed fuel-air mixture ignited by direct injection)
- Pre-chamber jet ignition
- HCCI
- User code
- Imposed burn rate profiles for any combustion concept (derived from cylinder pressure analysis, Wiebe, map based, neural network, etc.)
- Predictive emissions models for NOx, HC, CO and soot
- Predictive cycle to cycle variation (CCV) models
- Predictive knock models
- New sub-models for alternative fuels including laminar flame speed models for hydrogen, ammonia, and methanol as well as a predictive fuel stratification model for direct injected hydrogen
SI TurbPREDICTIVE SI COMBUSTION
With SI Turb, users are provided a two-zone, entrainment and burn-up model which also include:
- Combustion rates predicted based on in-cylinder conditions
- Head and piston crown geometry from 3D-CAD
- Spark Timing and Location(s)
- Fuel Properties
- Mixture Composition
- Turbulence (incl. tumble and swirl effects)
- High accuracy, fast run times
- Detailed Analysis (Knock, CCV, Emissions)
- Fast Running Models
DIPulsePREDICTIVE DIESEL COMBUSTION
With DIPulse, users are provided a phenomenological combustion model that’s designed to handle modern multi-pulse injection.
DIPulse capabilities include:
- Combustion rate predicted based on in-cylinder conditions
- Pressure and temperature
- Mixture composition (fresh air, fuel, EGR/residuals)
- Injection timings and profiles
- Fast run time
- Real Time/HiL capable
Fast Chemistry SolverMAGNITUDE SPEED UP WITH ACT
ACT (Advanced Combustion Toolset) is a collection of productivity tools that enable both increased model fidelity and faster runtimes. It includes a state of the art chemical kinetics solver that offers significantly improved computational times, enabling usage of more detailed mechanisms. Potential applications for detailed kinetics include:
- Chemistry in Cylinder Unburned Zone (Knock)
- Chemistry in Cylinder Burned Zone (Emissions)
- Chemistry in Pipes/Flowsplits (Exhaust Manifold Oxidation)
Advanced Features
- Model any combustion mode with any fuel (SI, diesel, dual-fuel, pre-chamber, HCCI, etc.)
- Model mean cycle combustion and CCV
- Detailed kinetics or partial equilibrium for calculating any emissions species
- Predict knock boundary or evaluate knock onset and intensity using detailed kinetics or induction time integral models
- Calculate in-cylinder flow and turbulence model which couples to combustion and heat transfer models
- Model combustion interaction with cylinder FE wall temperature solution
- Model in-cylinder evaporation
Ready to learn more about GT’s simulation capabilities?
Reach out to us with questions about our technology or to discuss your current simulation needs.
Learn more about Combustion & EmissionsENGINE PERFORMANCE ANALYSIS
Learn more about Combustion & EmissionsRELEVANT TECHNICAL PUBLICATIONS
- Calibration Optimization of a Dual Fuel (Diesel + Hydrogen) Engine Using GT-SUITE
- Assessment of Virtual Calibration Potential for Latest Generation of Automotive Common Rail Diesel Engines
- Hydrogen Combustion Engines for Commercial Vehicle Applications – New Requirements for Combustion Simulation
- All Weather Condition Gas Engine Combustion Predictions
- Experimental and Numerical Investigation of the Ignition Process in a Large Bore Dual Fuel Engine
- Methodological Approach for 1D Simulation of Port Water Injection for Knock Mitigation in a Turbocharged DISI Engine
Learn more about Combustion & EmissionsRELATED GT APPLICATIONS
Ready to learn more about GT’s simulation capabilities?
Reach out to us with questions about our technology or to discuss your current simulation needs.