Course Content
1- Quarter Wavelength Tube (QWT) Resonator
Designing a QWT resonator and calculation of sound transmission loss
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Part 1: Single QWT Resonator
23:19
Part 2: Double QWT Resonator
13:35
2- One inlet two outlet muffler
Sound transmission loss analysis of a one-inlet, two-outlet muffler equipped with two perforated baffles.
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Part 1: Sound Transmission Loss (STL) of Muffler
26:48
Part 2: Sound Transmission Loss (STL) of a Muffler with Two Perforated Baffles
08:25
3- Breakout Noise Analysis of a Duct System
Effect of Boundary Conditions and Duct Geometry on Sound Radiation into the Surrounding Environment
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Part 1: Natural frequencies of duct
16:35
Part 2: Acoustic Radiation (Breakout Noise) from a Duct
15:52
4- Speaker: Near field and far field sound
Near-Field and Far-Field Sound Pressure Levels in the Polar Plot of a Simplified Speaker
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Near & Far-Feld Sound Pressure Level
16:59
COMSOL Acoustics Tutorial Package – 4 Real-World Case Studies

In this section, you will learn:

  • How to model a porous material using the Delany-Bazley-Miki model inside the resonator.

  • How to perform a parametric sweep to study the impact of geometric parameters on acoustic performance.

Exercise Files
Part 2- QWT.zip
Size: 395.57 KB
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