Fig. 3From: Modeling and experimental verification of a new muffler based on the theory of quarter-wavelength tube and the Helmholtz mufflerDiagram showing the new muffler. r = connecting tube’s radius (m); \(l_{c}\) = connecting tube’s length (m); \(V\) = volume of resonance cavity (m3); \(L\) = length of resonance cavity (m); \(a\) = resonance cavity width (m); \(b\) = resonance cavity’s height (m)Back to article page