Acoustics of piping and ducts

Describes a computerized procedure for the analysis of the acoustics of piping and duct work systems. The procedure can be used for the analysis of complicated network systems with multiple inputs and outputs. It combines transfer matrix and finite element methods, using finite element methods to model more complex elements and using exact solutions for the simpler interconnecting parts. The method has applications in modelling pulsations in gas pipelines, the design and analysis of muffler systems and calculating sound transmission in ventilation ducts