Physics-Based Wave Dynamics Analysis
Analyze the effect of pressure wave dynamics on system performance and stability, enabling engineers to identify and resolve pulsation and resonance issues early in the design process.
Accurately predict pressure pulsations, valve dynamics, and leakage, powered by GT-SUITE's validated component library and CAD-based model building.
Solution Overview
Accurate Modeling
GT-SUITE’s advanced Navier-Stokes flow solver provides the physical foundation for highly accurate hydraulic and fuel injection simulations, making it the preferred choice for OEMs and suppliers worldwide.
The extensive library of validated, application-specific components supports models across a wide range of complexity, from system-level models with imposed component characteristics to detailed component-level models capturing fluid-structure interaction, leakage, cavitation, aeration, and gas transport.
Within the engine domain, GT-SUITE is widely used for fuel injection (gasoline, diesel, and alternative fuels), hydraulic variable valve actuation, cam phasing, and compression release engine braking. Typical predictions include pressure pulsation, flow rates, valve dynamics, fluid and structure temperatures, leakage, and contact stresses.
Hydraulic models integrate seamlessly with other GT-SUITE sub-systems, including engine, valvetrain, and thermal models, enabling full system optimization and accurate capture of cross-domain interactions.
Application Highlights
Physics-Based Hydraulic Simulation
- Accurate pressure wave dynamics (water hammer) solved with the advanced Navier-Stokes flow solver
- Extensive library of validated, application-specific components for rapid and reliable model construction
- System and component level modeling, including valves, detailed pumps, and compressors across a full range of fidelity
- Fluid-structure interaction with fully integrated 1D, 2D, or 3D mechanics
- Prediction of fluid and structure temperatures throughout the system
- Automated model building directly from CAD geometry using GEM3D
- Unsteady, frequency-dependent flow friction for high-fidelity transient simulations
- Cavitation, aeration (free and dissolved gas), and gas transport modeling
Advanced Features
Hydraulics and Fuel Injection Key Highlights
Purpose-built tools for high-fidelity actuator modeling, fluid-structure coupling, and system-level co-simulation — enabling deeper insight into performance, stability, and control.
Seamless GT-POWER Engine Integration
Hydraulic models connect directly with GT-POWER engine models, enabling fully coupled system simulations that capture the interactions between fuel injection, valve actuation, and engine performance.
CFD Coupling for Fluid-Structure Interaction
Co-simulate with CFD solvers to resolve complex fluid-structure interaction phenomena, delivering higher fidelity results where 1D modeling alone is insufficient.
Detailed Solenoid and Piezo Actuator Modeling
Accurately simulate solenoid and piezoelectric actuators with full hysteresis modeling, enabling precise prediction of actuator response in fuel injection and hydraulic control systems.
Advanced Bearing and Squeeze Film Damping Models
Multiple bearing models, including finite element hydrodynamic (FE HD) solutions, combined with accurate squeeze damping for any geometry using general FE film solvers, deliver high-fidelity mechanical interaction predictions.
Linear and Frequency Domain Analysis
Perform linear and frequency analysis directly within the hydraulic simulation environment, enabling rapid assessment of system stability, resonance behavior, and control system response.
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Resources
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