Solutions
GT-POWER is used for guiding the development of intake and exhaust systems, especially with respect to acoustic performance
Solution Overview
Application Highlights
Analyze intake and exhaust acoustics with integrated 1D and 3D simulation, fast meshing, and CAD-based workflows.
Parameterize internal muffler geometry, including baffle locations and perforate properties, and optimize directly through GT-SUITE's built-in or third-party optimizers for rapid, systematic acoustic tuning.
Generate .wav audio files directly from simulation results to evaluate perceived sound quality of intake and exhaust systems, allowing engineers to hear predicted engine sound before a physical prototype exists.
Produce Campbell diagrams, waterfall diagrams, order cuts, and mode shape visualizations, including nodes and anti-nodes, in a single post-processing environment that supports root-cause diagnosis and regulatory reporting.
Simulate pass-by noise, engine run-up, and vehicle drive-away scenarios with full Doppler effect modeling for moving sources, aligned with standard regulatory and homologation test procedures.
GT-POWER's acoustic compressor model is unique to the industry, capturing compressor-generated noise contributions that other simulation tools cannot address. This is critical for turbocharged and supercharged engine acoustic development.
A single simulation environment supports naturally aspirated, turbocharged, and supercharged configurations across steady-state and transient conditions, enabling engineers to evaluate acoustic performance across the full powertrain range without switching tools.
Find answers to common intake and exhaust acoustic simulation questions.
Yes. GT-POWER’s Navier-Stokes based solver captures pressure wave dynamics throughout the system, so it can accurately predict both sound pressure levels and frequency content at the tailpipe and intake snorkel. Engineers get real data on noise quality, not just overall levels, which matters when you’re chasing pass-by and sound character targets.
GT-SUITE includes GEM3D, a CAD-based preprocessing tool that imports geometry from all major CAD formats, repairs models, and extracts internal flow volumes for meshing. Stamped shell mufflers, molded airboxes, and irregular plenums can all be meshed in Cartesian 3D, capturing 3D acoustic effects while keeping the fast run times you’d expect from a 1D system simulation.
Yes. GT-POWER can produce audio files directly from simulation results, so engineers can actually listen to predicted engine sound under conditions like drive away, engine run up, or pass-by events. That gives development teams a way to assess sound quality alongside the usual frequency domain analysis.
Yes. The whole workflow, including meshing and simulation, can run in batch mode, so it plugs right into GT-SUITE optimizers or third-party optimization tools. Parameters like baffle locations and perforate properties within mufflers can be directly parameterized, so you can run systematic design exploration without touching anything between iterations.
Ready to discuss how our 1D System Simulation services can help your project? Fill out the form below and our team will get back to you within 1 business day.
Questions before you submit?
Email us at services@gammatech.com
By submitting this form, you agree to be contacted by GammaTech regarding our 1D System Simulation services. We respect your privacy and will not share your information with third parties. See our Privacy Policy for more details.
