Diagnostic Visualization
Visualize acoustic behavior through Campbell diagrams, frequency and order waterfall plots, and order cuts for detailed noise diagnosis.
Predict noise levels and frequency content with GT-POWER's Navier-Stokes solver, from complex mufflers to air boxes.
Solution Overview
High Fidelity Exhaust Acoustic Simulation
GT-POWER’s advanced Navier-Stokes based solver intrinsically captures pressure wave dynamics within the simulated intake and exhaust system, predicting both the noise levels and frequency content radiated from the exhaust tailpipe and intake snorkel.
Advanced 3D pre-processing through GEM3D enables fast, reliable creation and meshing of complex geometries, including stamped shell mufflers, molded airboxes, and irregular plenums, supporting acoustic performance validation earlier in the development process and reducing reliance on physical prototypes.
Application Highlights
Physics-Based Acoustic Analysis in GT-POWER
- Analysis performed within GT-POWER, the industry standard engine simulation, used by every major engine manufacturer
- GEM3D, CAD based preprocessing tool allows for quick and reliable creation and meshing of complex geometries
- Quickly model complicated components, including stamped shell mufflers, molded airboxes, and irregular plenums
- Mesh models in Cartesian 3D and capture 3D acoustic effects in 1D system simulation run times
- Includes CAD tool to import CAD files from all major CAD file formats, repair models, extract internal flow geometries and build new geometries from a blank sheet
- Navier-Stokes based solver for detailed analysis, and linear solver for fast concept analysis
- Complete analysis, including meshing, can be run in batch mode as part of optimization processes
Advanced Features
Advanced Acoustic Prediction and Sound Quality Tools
Explore the advanced capabilities that give engineers full visibility into acoustic performance before physical prototyping.
Sound Quality Playback
Generate predicted audio output to assess sound quality directly, hearing simulated results before physical testing.
Drive-Cycle Simulation
Simulate real-world acoustic scenarios, including pass-by noise, engine run-up, and vehicle drive-away events.
Muffler Optimization
Parameterize muffler component properties, such as baffle location and perforate design, for automated optimization.
Flow Noise Prediction
Predict flow-generated noise accurately using the industry-validated Green and Smith flow noise model.
Flexible Analysis Modes
Run steady-state or transient analysis to match your development stage, from quick concept screening to detailed transient acoustic behavior.
Learn More
Resources
Explore the resources below to learn more about this solution, including technical papers, case studies, and application notes.
Connect with an Expert
Looking for guidance on a systems simulation challenge or project? Fill out the form below and our team will reach out to discuss how we can help.