Figure 1. Measurement configuration for plane wave decomposition at MWL.(a) Constructor drawing of the test rig that is used with Case 1 (single orifice) and Case 2 (double orifices), (b) Photo for the test rig with SR is connected

From

Experimental Assessment of Noise Generation from I.C. Engine Intake and Exhaust Systems Components

Sabry Allam

American Journal of Vehicle Design. 2015, 3(1), 6-15