Experimental Verification of the Nonself-Adjoint State Space Duct Model

Experimental verification of the nonself-adjoint state space duct model obtained previously by the authors is presented. Both pressure excitation at the end and mass flow excitation in the domain are analyzed and the resulting models are experimentally verified. Frequency response validations for both constant and frequency varying nonconstant impedance at the termination end of the duct are presented. The laboratory duct’s response to an impulsive pressure input is shown to be well predicted by the plane wave, state space model.