🎧 COMSOL Tutorial: Sound Transmission Loss of a Helmholtz Resonator with Porous Material
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🎧 COMSOL Tutorial: Sound Transmission Loss of a Helmholtz Resonator with Porous Material
In this tutorial, you'll learn how to model a Helmholtz resonator in COMSOL Multiphysics to analyze its acoustic performance. Helmholtz resonators are commonly used in noise control applications to target and reduce specific frequencies.
📌 What You’ll Learn:
✅ How to calculate Sound Transmission Loss (STL)
✅ How to evaluate Reflection and Transmission Coefficients
✅ Modeling a porous material inside the resonator
✅ Comparing simulation vs. analytical results (with a 10 Hz difference)
✅ Using Pressure Acoustics, Frequency Domain physics
This model is ideal for students, researchers, and engineers working in acoustics, NVH, and noise control design.
📥 Download the COMSOL model file:
https://www.dropbox.com/scl/fi/hyile2...
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0:00 0:27 Introduction
0:28 3:57 Geometry
3:58 5:57 Modeling
5:58 7:24 Results
7:25 9:24 Porous material modeling
9:25 13:29 Comparing results
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